if the force can stop bad things happening to people that means every bad thing that happened to you happened because you weren't important enough for the force to step in, because you don't count as much to it as Ben Solo or Rey, that it thinks you DESERVE bad things
Old Luke in TLJ seems to have adopted a much more detached and nihilistic view of the Force, like in Rey's first lesson he specifically tells her that the suffering and pain of all the living things on the island are as much the "will of the Force" as harmony and joy