They really won’t be.
For one, Blizzard made these changes while acknowledging the complaints about tanks, implying that they too recognize the problems people complained about. Blizzard are also qualified enough to realise that these effects I mentioned, takes time. People don’t just swap when feeling perfectly satisfied, those changes in roles played are often motivated by dissatisfaction with what they used to play.
So if you think they’ll turn it back on in a few days, then you’re straight up delusional.
But have fun with those lies you tell yourself. I can see it’s working out great for you.