You're right for this iPhone it doesn't matter but this entire discussion and what got the person focused on red car/blue jet upset was that it's a plug that has far more functionality (yes, it's the protocol not the plug) so from iPhone to laptop, same plug. That does have its advantages. And we can't assume the iPhone 10 years from now will have the same restrictions in battery chemistry.Cool - good to know they've boosted the spec, though it doesn't appear to be widely adopted.
Also functionally meaningless since you're talking a 14C charge rate, several times the rate that most LiIon batteries can tolerate without damage.
So the EU decided. If someone doesn't live in the EU, maybe Apple will keep the Lightning connection forever in the US and people can charge at 27W and run USB 2 data speeds for the next decade+.