Exactly, and more importantly they ve learned from the mistakes of others since Yoshi P plays and knows many of the problems WoW has and thankfully is ignoring the pleas of certain people with a very toxic mentality in a VIDEO GAME.
WoW started as a casual mmorpg where you didnt have things like losing gear when dying but instead of staying casual they decided to focus on high end content to pander to certain elitist crowd whose ego depends on video game achievements, and through time the effects of such mentality are clear, more and more focus on high end content, casual content becomes less and less relevant and with less and less rewards so the raid loggers dont feel "forced" to do dirty casual content, even doing Torghast is a torture for them because they are "forced" to do dirty casual content since their elite selves should only focus on raid logging.
Blizzard listened to these people, hell the lead Dev is a person that sadly shares that mentality to a degree and no matter how much he tries to pander to everyone, you cannot, you have to stick to one side and focus on making a good game based on your vision, never try to satisfy opposing sides, you end up disappointing both.
Ion no matter how much THE COMMUNITY hates him is a dev that understands his game and knows how it works, which is why THE COMMUNITY has such a hard time grasping things such as meaningful choices like covenants because the majority of them dont know how to play an RPG and think googling the best build not only makes them a good player but it is how you play an mmoRPG.
Ion knows that every spec can clear mythic and more importantly you are meant to use your brain and figure out how to do things with your comb's tools instead of "change to X spec cuz its how you do the fight, limit told me", but like you said, someone's epeen will drop if they have to wait a week for gear to pass a dps check they are currently unable to because they dont use the most broken specs and metaslave comb possible, and I know that is literally worst fate than death for the people whose self worth is based on video game achievements.
I can agree that his balancing is quite terrible, after all they created templates in pvp in legion only to barely use them while the whole point of easy to manipulate template is quick and often changes to break metas fast, but he still understands the game far better than THE COMMUNITY, at least in terms of class and raid design cuz he is absolutely hopeless in terms of casual content.