
I can react to it seconds in advance but for the life of me I have no idea how to tech this move offstage. I swear there’s something different about the window. Grounded teching is extremely free a lot of the time and it’s a stark contrast to this move specifically.

Wall techs have weird and unintuitive rules around them compared to grounded techs. To the best of my knowledge, it’s
I think you’re running into the latter case, and you’re either teching too early or too late and missing the narrow window to do it.

You need to press shield before hitpause if you’re at the wall, as you can’t press it during hitpause and there’s no window after hitpause. You also want to hold into the wall with left stick.
https://dragdown.wiki/wiki/RoA2/System_Mechanics/Knockdown#Teching_Walls

Realistically you’re just asking for the wall tech system to be improved, which it really ought to be. The way it works is profoundly unintuitive and you’d never realize why you’re missing techs unless you went and read the wiki.