If your argument is "this is unenforceable" and "failure to enforce is a low-stakes problem" then I'm not sure what your concerns are, other than a desire to control how others choose to spend their time. Either of those might be a valid objection (although I do not consider them to be) but together they sort of cancel each other out, no?

Regardless, some efforts like this are explicitly performative. In the event some problems arise and it turns out someone used a specific tool in the process of causing those problems, administrators (and insurers) can say "look we forbade the use of that tool, so this is on them and not us." In other words, enforcement is not always even the point, but it always seems to be the first stop on the concern-trolling trolley.

Finally, yes, people can misbehave and break rules, and the more effort they put into doing so, the more successful they will be at the rule breaking. Nothing about that is justification for not having rules, even when they are hard to enforce.