The agreement doesn't need to be unanimous. And it's fine for the agreement to be "just use whatever the latest small form factor USB collector is" which has been the de facto Android standard since the beginning.

It sounds like you're arguing that the lowest common denominator phone manufacturer will be holding up progress. But the connector is the easiest part, especially if it's a truly ubiquitous standard, because it will be heavily commoditized. The lowest common denominator phone manufacturer will just buy whatever the cheapest connector from China is, and this will almost always be whatever connector is most common.