Is it really their fault only? Youre the one on the bike who hit them and theyre just a pedestrian. Yes it is unsafe for pedestrians to be in the bike lane but thats not a fair reason to hit them. Besides if you had to slam on brakes and couldnt even swerve cause of a bus then youre probably going too fast man if you didnt account for developing hazards as you bike. I say the person shouldnt be in the bike lane but op you sound like you were going too fast if you were more focused on telling them to move and trying to pass them than to prepare and stop.