So basically only reason people use USB is for charging, and Quickcharge already exists without USB-C.
The idea that USB-C is faster for data transfers is great and all, but the idea that people transfer data via a cable on a regular basis seems false.
As I said before you can make a more compelling argument your next phone or the next Nexus NEEDs a fingerprint scanner vs NEEDING USB-C (beyond it just being general logical progression).
USB-C is probably faster than Quick Charge 2.0 I guess.
Fingerprint scanner is more important though.