Judging by those echoes, it is a push:

Pally pushes you back with a firm strike from a staff, disrupting your attack.

You establish your footing once more.

BUT footing edge does absolutely *nothing* to stop/mitigate those pushes (experimented both with a paladin and as a character against paladin).

Also, enlarge doesn't work too, seems fend is ignoring size modificator, edges, haste, acceleration and anything else (and elf-champion season proves it very well). I suspect that malleability/evade also is ignored, and probably this code just wasn't finished properly OR, more likely, there is a bug that prevents some of this code to work right.

Hope you'll take a look into it, thanks!

The edge 'footing' is for things that move you between rooms and the like. Not for anything that lags you.

So in this case, it's correct for footing not to assist vs. fend.