about these KMST revamp invincibility frames

What were the changes to them?

From what I read, CSB has invincibility frames only in the beginning, so I believe you can spam and stay invincible, but don't expect to be CSB + DSing without taking a hit. On the other hand the Counter Attack ability and the new delay-less Dragon Strike speed turns us into DPS monsters. No big loss.

Barrage lost the delay so you can Barrage right after one another to be more untouchable than M.C. Hammer. A great gain.

Demolition is the same as ever. However, ignoring defense will make it great for ranged bossing.

Backspin Blow is spammable, so I see it in the same boat as CSB. A big gain because spammable means it's very strong.

Getting hit doen't really matter while training, since they new charge pretty much prevents KB anyway. Sounds good.

CSB just turned into rush, so basically, our old way of training is morphed into something completely different. our focus isn't on invincibility, but rather making use of the hits we allow. This is what i gather from the information given to us. we need a video that's focused on training rather than showing off.