This rule is about protecting pedestrians and visually impaired persons from getting into an unfortunate and preventable accident. As many have pointed out, Tesla blithely pushed out a so-called feature that would have allowed people to record silence and broadcast that instead of the usual noise maker.
But of course, some types of people who don’t want to understand the logic or reason, lazily claim ‘this is all basically a NANNY state!’.
BTW, I also ride a bicycle. Sometimes when riding uphill, an older Tesla silently glides up to me, without me realizing until it is very close.