If all they did after Kaiten's removal was tack its full potency directly onto Iaijutsu and then reduce Kenki gain to tone down the the spam, I could at least understand the logic behind this decision even if I still can't fully agree with it, because its removal still causes the cascade effect of removing conscious gauge management as a concept. They wouldn't have even needed to mention things like "action bloat" or "this skill was holding back SAM's design in the future" if they went this route.
But, they didn't do this. Instead, not only did they use these reasons to justify its removal, they completely ignored several other more obvious routes to take that would have significantly reduced bloat in a meaningful way without even affecting the overall feel of SAM.
Even more bewildering though was the change to Tenka Goken. Not only does this have nothing to do with action bloat, it actually makes SAM more dangerous to play regardless of skill level, which hinders their mission to make FFXIV more inclusive. Nobody wants to hard cast a tiny point blank AoE in the middle of 6+ overlapped monsters with their own hostile AoE. There is already enough skills where we have to dive in, and it was fine because they were all instant abilities. With the recent Famitsu interview regarding 6.2 features, the only possible reason I can imagine for this change is the fact that they are implementing a Bozja / Eureka-like Duty Action system that will enable jobs to effectively swap roles within the new Variance / Criterion Dungeons, so within the context of potentially playing SAM as a tank in more easily accessible content, this was maybe their reason. Except WAR mains are also clamoring to get their cone AoE back, and even some suggestions of going further and making Mythril Tempest a cone as well, and I agree with them.
In case SE is reading this, I want there to be no ambiguity here: Do not make Tenka Goken an instant cast skill or a 30y radius circle to compensate, just give us the 8y cone and the rest of 6.08 SAM back.