This is more of a statement, rather question, that hopefully the right people read.
Nearly all Blizzard games run on Mac. I personally play Starcraft and Diablo on my Macbook Pro, and they run just fine with no errors at all. Now, either the developers are being lazy about introducing Overwatch to the Mac (it’s the 21st century, the technology exists), OR they don’t know how to do it (as I just said, most Blizzard games are on Mac).
The “lazy” comment stems from reading posts from Overwatch developers stating that there are “platform issues” and “Apple’s technology makes it difficult.” I will state again, this is the 21st century, you’re not developing a nuclear fusion energy reactor or sending a man to Mars. The technology exists, stop being lazy.