Micro-USB was similarly enforced by law (but adapters were permitted with that regulation, thus allowing Apple to continue using proprietary ports) and that legislation had a clear and obvious positive impact for smartphone users. Don't you recall the days when every single manufacturer had a terrible proprietary connector? I think that enforcement was one of the best examples of a regulatory win in the technology sector in recent times. This is simply an attempt to strengthen that regulation and update it to a modern standard.