>>14203683Torterra is the redheaded stepchild of the group, as practically speaking, the interactions don't balance out.
Yes, earthquake hurts both Empoleon and Infernape badly, if it ever lands.
But if Empoleon has any ice type moves he outspeeds and almost definitely 1-hit kills Torterra. His 11 resistances are just generally very valuable as well.
Infernape's status as a sweeper means he's worth using anyway. With fire blast/overheat/flare blitz, he chews through Torterrra's defenses anyway.