Some months ago I posted comparison screenshots between SC2, Dawn of War 2, and C&C 3, it was pretty obvious that even among such old games, SC2's graphics are objectively sub-par. These days they just add effects, and don't care much about details.
"So, models are low-poly, textures are low-res, animations are bad? Have some realtime shadows here and there, some ragdoll, some postprocessing, all should be nice and pretty now."
It's not. It's excrement with glitter.