There was a tweak to help with matchmaking in H2H, which was supposed to help with mostly latency.
VSA was not done yet.
Basically, devs, when I spoke to one of them, were keen to see if people are still matched with much higher ping players in h2h, or if you play vs people mostly from your region. The other is the difficulty (so many stars vs little amount of stars)
So the question is. Has the matchmaking overall improved? If it has not, then list examples why it hasn't (as I said initially, it's mostly to do with latency, but if there are skill level/stars discrepancies, list them too)