I think there was a push many years ago to get everything on to micro USB. What a mess it would be now if that were the case.
While I'm all for market pressure pushing Apple to USB-C, which I think they should have done years ago, I don't see forcing the standard to go well. What'll happen in 10 years when USB is too slow for data and can't carry enough power? Your portable device has to have a second port on it? Where are you going to stick a second port on a phone?
I think this EU law will push everyone, especially Apple, towards wireless everything. Now everyone will have to buy or collect new wireless charging gadgets, making the new law redundant or useless.
Legislation on this is a bad idea, and that's a liberal saying that.