It would be good for players to get an answer now (to know whether or not to ascend) how it is intended to work, even if it won’t be fixed for awhile. Because this is a new action effect unlike most, we are kind of guessing.
#1 - It could be the intent that a blind can cause some of the actions here to miss. This is somewhat of an upgraded Mad Hatter, who can certainly miss stealing buffs when blinded. Whether it’s acting on your team or opponents may not change that rule.
#2 - It would depend on the outcome of #1. If blind is in play with #1, the blind could be an ailment that still remains on LL after resolution. The game graphics don’t always give a good indication of what’s going on during complex moves. I would expect to see a ‘Miss’ on allies when the blind causes a failures. Unfortunately, it seems that only damage resolution usually gets a Miss animation.