The problem is,
Raids are expensive as heck to make.
Raiders are too small in number to pay the bills.
This is why Blizzard is trying to "please everyone".
You can only "don't try to be all things to all players" if you can afford it - i.e. revenue > cost.
Also this is Bobby Kotick's Activision we are talking about,
Maximizing profit >>>>>>> everything else