But to address the OP’s topic.
Orcs are tough and I fully agree with them being as hard as they are. The way I look at it is orcs are badass a la Tolkin and nobody other than soldiers and heroes take them on… and even they still die in the books.
As for game mechanics, the game needs a late game opponent and orcs fill that role very well. Which means the player should not mess with the orcs until both highly experienced and well equipped and even then be ready to turn and run.