What you must understand is that this is the product of a failed version of Monk being salvaged by the (not-so) Balance Team. Generally, Monk mains have not enjoyed the progression of the class for two expansions, at the beginning of SB and now in ShB. The only redeeming factor of the SB variant is the late TK rotation which is no longer available.
Monk before 5.05 was so stressful to play, every fight boiled down to: Will I be able to keep GL up with management tools that I have? And the answer to that wasn't a definitive "yes" or "no," it was a "good luck trying." We have all of these GL management tools: RoE, SSS, Anatman, Form Shift, Perfect Balance, and Tornado Kick. Half of these are reliable, them being Form Shift, Perfect Balance, and TK, TK being only reliable in the sense that it can assuredly spend your stacks when you want when within range. The other half is unreliable almost religiously. Anatman was our transitional tool, something long needed to keep stacks and form over the lull. SSS I assume was supposed to be our "oh, snap" refresher when major errors came into play and you weren't near the target for GCDs and also not in Coeurl form, which... now thinking about it is a bit too situational to need in the first place.
RoE is now a fickle one. RoE is still RoE, requiring the player to incur damage to themselves to activate to refresh GL to maximum, though I'd argue that the GL management is now the side effect of the skill since the 30 second True North is simply too valuable to not consider it as the main effect of the skill. While people, including me, considering this overkill, it's definitely still a QoL change to Monk, since most raids nowadays have assured roomwide AoEs followed up by a series of mechanics where performing positionals would either be lethal, risky, or impossible. That being said, 30 seconds is still overkill to me, but I'm not underplaying the QoL that this brings to Monks. Positionals should never be removed from the game. It adds a layer of engaging complexity. The balance between not having to do positonals with True North/RoE as to just performing the positionals normally so you can save the abilities for a more crucial moment of the fight gives you more to think of, though it will eventually become more routine. It's just every fight won't be a cookie cutter employment of True North/RoE, it'd be formed by the fight.
As you probably know, Monk hasn't had a good time in evolution. The main reason of this being the presence of Tornado Kick in its current form. It brings Monk to a fork in the road: should I maintain Greased Lightning or should I spend it for a big hit (yes, it's a big hit, the tooltip still hasn't had the potency fixed)? And the normal answer Monks would give is "well, I'd want to keep GL if I can, but if not, I'd rather use TK." You'd want to keep your class's main damage increase mechanic as much as possible, right? But Devs thought that Monks wanted to use TK mid rotation since the late SB rotation employed it, encouraging Monks to use it in normal play. But it's not like everyone wanted TK to be a part of the normal rotation. We just wanted a more engaging rotation, and the TK rotation at the time gave us that. Despite them doing this, they added Anatman and Six Sided Star, two GL management tools to have us not lose GL. Even employing TK mid rotation is a DPS loss, so it's antithetical for Monk to use. Why?
The remedy for this is Form Shift. Form Shift refreshing GL from Coeurl -> Opo-opo was all the GL management Monk needed alongside Perfect Balance to complete the GL upkeep toolkit and was long desired since HW and grew in demand over the years. Rather than doing this, we had multiple skills over multiple expansions serve this purpose. You wouldn't want 5 variants of a skill to perform one purpose on every class in place of other damage, utility, or QoL changes they could've gone with. You shouldn't be afraid of these Monk changes, we've been asking for them for years. We're finally getting them. Even after the devs said they listened to the players, understanding their complaints, saying they'll change Monk to answer these complaints, then doing nothing the community asked for with the changes they implemented. The only notion you should be concerned with the Monk changes is that it took actual years for these to come into effect. That should be what stands out to you, not that they finally happened.
As for the identity and difficulty of classes, OP, I'd abandon the notion of this improving anytime soon, if at all. Surely, you must know the homogenization of classes directly stemmed from people pushing specific classes for meta raid compositions making others, like BLM and MNK, inferior to others regardless of individual performance. SE's resposne was "well, if people are liking these few classes, shouldn't we make all classes almost the same so there's no preference?" The job identity crisis was stemmed from the community itself, perpetuated by the devs, employed by the balance team, and suffered by the players passionate about their class, not the casuals who will play the game regardless. It's why weapon type debuffs were removed, why raid DPS abilities like Trick Attack are overvalued by the community and balance team, why crit buffs were taken away from every class but DNC. Homogenization wasn't the result, it was the goal. FFXIV balance is and probably will never be great, despite being a sub-based game. Just looking at how the classes progressed in direct relation to how the SE devs marketed the game this expansion alone, along with the small balance team (four people for seventeen classes) should show you how much they had class balance in mind.