Quest priest ment for midrange style of play?(yay or nay)

Just watched a bunch of streams regarding the new expansion, it doesnt seem that the priest quest is performing as well as initially thought(in aggro decks for sure).I think it is ment as more of a late game pressure card for midrangey decks, rather than killing off fast.It does take a long time to complete, too slow for aggresive playstyle.

Any thoughts on this?