Yes that’s how changes are made and how feedback is shared, they aren’t only reading the feedback from the unsubbing section of the site. The recent M+ changes got heavily criticized so they changed the system after a month or so.
You’re right about this being a pattern that Blizzard doesn’t care about or is actively enforcing, but people should still be complaining about all the nonsensical changes that seemingly have no justification. I’m leaning towards incompetence more than malice in this case because their scaling system is legendarily horrible, just look at MoP remix and how much of an embarrassment leveling to 70 is for immediate proof.