Stealth Rock as a Move Tutor~~
That wouldn't be such a bad thing if they'd nerfed Stealth Rock reasonably. I think I would've preferred for Stealth Rock damage to have capped at 25%, regardless of type combination. The mere fact that decent Pokemon like Charizard, Articuno, Moltres, etc. are so severely crippled by 50% of their health just for switching in is ridiculous. This was even more ridiculous given that the TM was available from the first gym and learnable by damn near everything.
I can see there being move tutors for the elemental punches (it's becoming a staple) as well as previous TMs like Focus Punch, Roost and Sleep Talk. Maybe the inevitable RS remakes will give us move tutors for some of the now-defunct TMs introduced that gen, such as Snatch and Skill Swap.