Earlier quoted context omitted.
Case in point: Look at how much innovation Apple managed to squeeze into Lightning after its launch… right?
Funny enough, if Micro-USB has been mandated by the EU, Lightning wouldn't even exist and everyone would have been stuck with the IMHO chunky Micro-USB.
This has been enforced since late 2012 (in draft since 2008) and is the reason why Apple had to include the micro-USB adapter in order to sell in the EU.
There is no reason for speculation since facts are available on your friendly neighborhood wiki. What we're seeing now is that the law is updated to enforce USB-C, which has been accommodated for a while.
The intent is not to standardize on an implementation forever, but to make the industry agree on a standard.