In terms of being able to dodge and avoid being grabbed I'd say yes, however due to lag it had little to no impact on kind confirms. The confirms either still work or are now lag confirms .
Personally, I dislike the changes. Not being able to jump hurt the combo potential of a few characters and really helped characters like Kat who don't need it. I feel that just increasing the number of frame someone is on the ground for grabs only would have been enough. Furthermore, if lag is going to make it impossible to remove KCs then I say leave them and revert the changes because it many causes its harder to not get confirmed now.