When people mention "footies" they generally mean normals, both baiting them and punishing wiffs or unsafe block strings. That's great and all, except generally the quickest moves is a d1 (6 frames if you're lucky) which has fuck all range, and most long-range normals are 10-15 frames. There are a few exceptions - Superman's f2, Grundy's d2, Doomsday's d1 spring to mind - and those normals are utterly amazing. In addition, most normals have quite a short range and Injustice has very large stages so the characters are often spaced much further apart, mostly using special moves to get close and start pressure.
Compare an Injustice character's start-up frame data to this:
http://www.eventhubs.com/guides/2008/nov/13/ryu-frame-data-street-fighter-4/ 3 frame start-ups and you'll see why "better footsies" isn't about the player's getting better. Most wiffed normals (hell even a lot of blocked ones) are impossible to punish due to high start-up frames on said punishes. Again, some characters have normals or specials which get around this. Injustice is not a footsie-orientated game. This is not a bad thing (I prefer this kind of style to SF's instant-everything) but saying people need to level up when the game doesn't support that kind of play is daft.
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