This is like complaining that a game chooses a easily readable art direction with low GPU overhead, rather than hyper realistic fidelity.

My beef with dual tex is that it is slippy.

I think instead of increasingly abstracted versions of rocks, they should embrace the freedom to make a hold any shape you can mold out of fiberglass, and just go ham. A starfish looks like a good shape, throw some plastic starfish on the wall.