>Ludicrously strong—when it butts heads with a mountain, it is the mountain that shatters. But its short legs struggle with turns, and it is incapable of stopping unless it collides with something.

No wonder they didn't wrote things like that for Rhydon and Rhyperior.
If a small Rhyhorn can do that, you clearly don't want to imagine the absurdities it could do while evolving and therefore, becoming stronger.
Also does that count at faciliate the eating process for Larvitar?