'New players try out JOB and think ROLE sucks' is a problem that has affected this game since at least Stormblood. Between ill-advised button culls (followed with replacing them with buttons that more or less do what old buttons did, but "flashier"), and a focus on how the job will play at cap above all else, arguably every job in the game sucks before 50, some worse than others. And new players who don't choose to buy a boost will spend a lot of time doing content that is synced, so even if they are well above the level for an early story dungeon (happened to me on an alt), you're potentially having the majority of your kit locked away by the story, by the dungeons or boss fight instances, as you zip from quest marker to quest marker. They added an option specifically to allow players to enter leveling roulette for dungeons at or near their level, because it's pretty freakin' annoying to take a level 60+ job that's actually starting to feel like it's coming together, and get dragged into early ARR content.
I love FF14, but a well paced experience for newer players it ain't, and Monk is only one symptom of that problem. I recently decided to start leveling bard finally, and it's been so dull (its in the 50s now) that even when I ain't focused on classes, I don't even feel like logging in to level it. Summoner pre-60 is exceedingly dull. Black Mage feels stiff as heck early on and doesn't really come into it's own until roughly 60. Many DPS don't get proper AoEs for far too long. Healers have had considerable portions of their kits stripped away over the years to essentially force them to heal more and DPS less (while still placing the expectation that they DPS anyway). Every job feels like something is seriously wrong or missing until you get to the current level cap for one or many reasons, and that's pretty much on SE. It's been such a problem that there have been instances where they've needed to fix job quests to account for tools players once had being missing from the game now.