I think it's fine to be stuck on a "good enough" standard, if this results in less e-waste and less need to upgrade all accessories simply because the dominant connection port changed.
If we wanted to have the standard update itself every 15 years or so, we can have a body dedicated to selecting, or creating, such a standard. We don't write automotive standards directly into our laws, so we don't have to the same with charging port technology either. As the maxim goes, "every problem of computer science can be solved with another layer of indirection, except for having too many layers of indirection".