The pinnacle of iaijutsu and the 'ogi' skill of the samurai feel incredibly bland an unrewarding now. Namikiri felt like a huge deal when I started using it, now it feels like an extra midare that takes up a button space on my bar for 2 minutes between uses.
Beside affecting enjoyment of the job negatively, autocrits hurt synergy with support jobs I feel. I feel bad being in a group with them because their critical chance buffs benefit other melee so much better now. Autocrits just seem like a very poor design decision. A critical hit is a reward for the player, making it granted means it's no longer special.
It seems to me that the specific choices made to address fluctuating damage numbers compiled in someone's spreadsheet are rather harmful towards the player and these adjustments were made more to please the developer side. If overall damage isn't that vastly far away from where we were in the last patch, why upset the players who loved the job?
The button bloat excuse is not true that much is clear. Anyone playing SAM can immediately say and I'll echo the same sentiment: I have a quickbar dedicated for job actions that are either rarely used, share a cooldown or are otherwise mutually exclusive. Kaiten was never one of these, it was the "I'm going to have a lot of fun landing the next hit" button.
Stacking potency boosting and a critical hit feels good as a DPS player. As a tank, I when mitigation, shielding and healing makes me shake off hits like a badass - it's awesome. As a pure dps job I could overlay and stack different increases, procs and support buffs for big damage to feel like awesome.
Personally I'm not happy about the new tenka goken changes either, especially since I loved spinning kaiten before it on dungeon trash, and it felt very satisfying obliterating the mobs before me. Now it feels like most of the attack only hits air.
While they boosted higanbana's dot and put that tragedy of an autocrit on midare, goken didn't get any 'compensation'. The cone already hit everything in a pull it's not like we can hit more targets with it now... in exchange we can't boost it and if I decide to spend kaeshi on it, the second hit is just as bland as the first.