Clearly, you haven't really gotten into mining, otherwise, you would not even ask that question. The skill of working within the time limits of drones, probe a rock, laser it, let the collectors start picking up and while that's happening, probe the next and the next, so you are two or three rocks ahead planning out your route through the belt. And then there is surface, subsurface and core mining that require you actual twitch skills and knowing how to fly your ship so you don't suicide your limpets. And when you have 6-9 limpets running collections, you better have your next rock ready after about 30 seconds because your limpets are going to be done by then.
Mining like any other profession has various levels of proficiency, if you're just sitting there slow boating and shooting a rock and using one maybe two limpets to pick up fragments, you're not making any amount of money that would be worthy of a nerf.