I think Azir is actually worse now...

So it seems that Azir is actually significantly weaker, not stronger, after the plethora of bugfixes.

The cause of this seems to be one bug that previously allowed him to poke well beyond (around 200 units I'd guess) his listed range with his Q in some cases by appearing to have the maximum distance be related to the position of his soldiers, not him, making his laning phase far safer than it would otherwise be. Although this bug was fixed, it is not mentioned in the patch notes (unless it was a byproduct of one of he bugs that is mentioned).

Now that that bug has been fixed, without the additional safety it afforded, he is far more vulnerable in lane. Further, because of the reduced ability to move around his soldiers, his mobility and utility later in the game are also notably reduced.

To be perfectly honest, I think we're going to see his win rate go down as a result and I think that the additional range the bug allowed might need to be integrated into the game.