i agree to a degree sab, all the characters you mentioned still have at least 1 safe special for possibly ending blockstring with and possibly setting something up afterwards.
I would not include K' in that statement. In the latest tournaments for EXdragonproject, we've watched his Ein Trigger get stuffed, his minute > narrow spike being blocked lead into whiffed combos If you do Ein trigger real close, I'm pretty sure someone can poke you for it.
I doubt Kim will be any more punishable than Leona's X Calibur in the air. She flips backwards with it, and you COULD try and make her fall into a fireball of something after it's cancelled from normal->strike arch -> X Calibur, but generally, it's a tight punish. We've seen Grand Saber still used for progressing closer, even though it and Moon slasher have been made slower to recover. I'm sure something very similiar is happening with Kim.
K' punishability is still minimal because he can push you away with the fireball after Eins Trigger. But since the recovery on both is increased, you can roll though it, and probably punish him while he's in it. I'm sure this'll be about the same for Kim. It's very likely all just "nerfing" to make Guard Cancel Recovery Rolls more worth using (again, forcing you to use meter for the big stuff), as there were lots of times in arcade, where characters recovered too quick, and the "GCR" user just ended up getting punished for his evasion.
I think I found a typo in your translation for Kula BioBooster:
Kula:
-Recovery on df.B increased
*EX Ray Spin Sit recovery improved
One says increased, one says improved, both say 硬直時間を減少.
If they both are increased, I'd be so happy XD.
EDIT:
Also, did anyone catch the part where Maxima gets an Air Reset from a wire? That's just too dirty. He's gonna do a lot of damage with meter.
Yup, definitely saw Maxima landing that EX Press off the EX Vapor. Wish I knew that at Otakon! XD What does that make the move now? An "Anywhere Grapple"? Will it work aganist normal empty jumpers? CAN IT CATCH HOPS NOW? That'd be amazingly good!