I'd like to underline that every priority user in OU is or bulky, but slow (i.e. Mega Scizor, Azumarill) or fast but frail (i.e. Weavile). Thios means that you have plenty of ways to deal with them even without using Tapu Lele on your team. Mame Y...
Genesect checks priority sweepers like Scizor and Mega Pinsir a lot better as he has enough bulk to stomach most boosted priority at full life (Azu, mega maw and Bisharp being notable exceptions), while Phero has an infinitely better time with speed boosted threats...