In his stream preach stated that blizzard is so unfinished with BFA that the alpha is dried up and one of 3 things are happening
1. its going to be ok but unlikely
2. its severely unfinished hence the straight lack of anything new in the test realms recently and the fact as he stated about the ele shaman spec it just doesnt work
3. blizz is comfy with how some systems are going to work and never test them
honestly i couldnt keep up with him between the fact he was stating frost plays wonderfully in alpha and odyns fury needs to return