Apparently MvCI's netcode is great based on impressions from Discord, which led the guy who tested it to believe that SFV's issues were more with the servers they're using than the netcode itself.
Servers shouldn't have any impact unless they ditched the intermediary server that you can occasionally get connected to instead of directly with the player. Those matches are almost always terrible.
If he's talking about matchmaking then yeah, it'll probably be better because it's being handled by Sony/Microsoft/Steam who have way more experience with this than Capcom. Plus, they don't need to track FM or anything like that on top of everything else.
But one impression doesn't really mean anything. SFV's netcode is flawless most of the time and only unplayable occasionally, at least for me. SFV is still dealing with the bad first impression its online left on people so it's known as being shittier than it actually is currently.
It would be nice if they did fix the one sided rollback issue but my guess is the netcode is identical to what's in SFV. Capcom, as far as I know, has never really seen their netcode as having issues (except like one tweet from a CoA rep on looking into one sided lag) so I doubt they've been actively trying to improve it.