First of all, I don't want to offend anybody who dislikes the change. This is just my perspective and I don't think it's the "truth". I know it's an unpopular opinion but I want to understand other players perspective on the matter.
I really enjoyed the removal of Kaiten from a game design point of view.
Kaiten was basically useless from a game design and gameplay perspective. If you use something every single time before a specific skill, it's better to just remove it. In my opinion it was a good "flavour" skill but clearly unnecessary when taking into account the whole rotation.
Personally I loved the skill animation, but what I loved even more was SAM identity as a big burst class with combos. That's why I think the real problem is that now SAM feels like a solid combo class with small bursts. I'm strongly against class homogenization (if you check my history you can see how long ago i started a big thread on that particular matter) but I think the Kaiten removal is not the culprit this time. I'm worried that a lot of players are framing Kaiten as a scapegoat for this particular identity loss.
But why did I say that the change is not enough? Because in my opinion the removal of Kaiten raised the curtain on the real problem with Samurai, which is Kenki. Kenki now feels like a useless resource because it basically had just a couple functions and lost it's primary one.
Now that any other class has gap closers and movement abilities, it makes no sense to tie the Samurai ones with Kenki. And it makes no sense to have a main spender that you basically brainlessly spam throughout the whole rotation. I know that is very difficult to understand this point of view if you are a long-time Samurai player and see Kenki and Kaiten as the true identity of SAM, but IMHO the removal of Kaiten wasn't the cure because Kaiten was just a symptom of a bigger disease, which is the class resource spenders.
You can't tailor a functioning and functional "melee caster" based on big numbers around small resource spenders. There's a reason why BLM is and always has been (except maybe for Stormblood) the most solid job in the whole FFXIV roster.
It's blatantly obvious that Square-Enix could simply entirely remove Shinten and increase auto-attack power to make the job feel better. I'd really like to see Samurai embrace it's identity as a big numbers job based on huge bursts of damage, even if that would mean losing Kenki (of course the devs could just insert more "important" spenders) forever along with Kaiten.
As I said, I know this is currently a very controversial opinion, but I'd like to hear what other SAM players think about that perspective.