I think the main idea of boulders is that it's a bot check so just removing them would cause botting to be a lot easier. Well there are slimes that would take care of that on the deeper levels but I have no idea how programming really works maybe it's just as easy to kill slimes and chip boulders with a bot xd
but at least with mechanics like this you get rid of 90% of randoms trying out some very basic script or something.
I btw think they are annoying too but not sure how the problem could be solved otherwise xd