I feel like the way you're downplaying wheelies is a bit disingenuous. It's not just an emote on the road, it's something that allows for some really creative jumps in missions. On the scale of one behavior or mechanic it's maybe surviveable so Kewlin's statement is a bit dramatic too, but on the whole you really want to be careful not to throw the baby out with the bath water.
I think there is a small set of things that make APB unique and compelling. One is what everyone is conscious of, all the avenues for customization. Another is the way missions use the map's city blocks, essentially stringing together a playlist of individual maps, sometimes combining two or more together in the same mission stage, in a way making it procedural. And one is all the different ways you can use vehicles in combat without them actually having weapons on them, which is where wheelies come in.
The game doesn't work if the client and server aren't stable, and stable performance doesn't carry the game if it loses what makes people want to play it.
And somewhere in there is the way the movement system never focuses on animation to the detriment of 1:1 control, don't ever change that pls