In the top of the arena as of now, there's no SM that 1 hit kill anyone, yet revitalize is still much better than berserker.
Also succubus skills remove a % of hp to the shrine, it wont matter what lvl your heroes are.
I have revitalize 2/5 on succubus and I think I can procs before or at the same time as a 5/5 berserker.
I do agree ofc that berserker as much more uses overall and I personnaly wouldn't refresh if I had one but hey I wont spend another 100$ to maybe get lucky.
Also with the new features I also agree that revitalize might not stay the best choice .
But dont forget that revitalize also is incredible to defend your base!