If you put a scrunched up piece of newspaper on the end of a string and dangle it in front of a cat, pulling it away when the cat pounces, aren’t you doing much the same? Yet that is universally regarded as playing not tormenting. Despite his advanced age my cat seems to quite like the process. Then again “the process” frequently ends up the same way it did in the clip. At least he gets the satisfaction of biting something in the end.