I've said it before and I'll say it again.
Blizzard has a hard job of catering to the professionals, and higher elo players. But they also have to cater to casuals, and noobs.
If you aren't mid diamond / low master's. Changes to characters aren't usually going to alter how you climb. Because if you aren't a higher rank, chances are, you're bad at the game, or a beginner. The good players are still able to use people who are nerfed or changed.