What decisions are you talking about from that expac?

I can't remember all of them, this was many years ago. The only one I remember specifically is class changes that didn't make sense. The class changes weren't made to make the classes play better or be more balanced. It was essentially just change for change sake, to keep players in a perpetual mouse wheel of change so they "felt" like stuff wasn't boring, which aligned with other things they were doing to make the game feel fresh. In reality, it was just done to increase player retention without having to add new content. It was lazy, and the motivations behind it were highly suspect, which increasingly corrupted Blizzard over time.

There are other changes too, but my brain doesn't work that way. I forget the details, but remember the overarching ideas behind them. To be fair, they were fewer and smaller for TBC, but they became bigger and more blatant as time went on. Even though WotLK was well received, it was obvious by then the direction Blizzard was taking, which is why I dipped out (and most of my friends did too) to other MMOs after Wrath.