Now I realize Iris's Excadrill using drill run above ground doesn't mean Clay can't use drill run in a creative way. But it doesn't help that initially it used it by digging into the ground, and then it used it above ground.
And if Excadrill always had rock smash, why didn't it use it against Roggenrola.
I don't think the battle was cheap per se, but it doesn't help that Roggenrola did nothing but Sandstorm before it evolved.
A flash cannon or stone edge would've been a welcome sight and would've made the battle better (even if it missed). The latter not seen since the Audino episode.