Bad Aim
Even if your roommate is not a professional athlete, is it too much to expect them to throw their dirty laundry into the basket instead of around it? We don’t think so. Sure, you may have a bad aim and you may miss while throwing your stuff in but all you have to do is pick up the clothes from the ground and put them where they belong.
Sounds simple enough, yes? Apparently, that’s too much trouble for this OP’s roomie. We’re not sure if publicly shaming them with this picture resolved the matter but we sure hope it did!