To be fair, it was not dissimilar to USB1 when it came out, as I recall - although it was a while ago. Apple pushed it on the iMac and it gained a lot more traction.
If it causes USB-C to be implemented more widely on other hardware, that's fine by me.
As for the just one connector....be interesting to see how that is worked around in the real world. Presumably a y-cable on the power connector or something?