USB Type-C is a connector shape, used by both USB and Thunderbolt. So people saying they want thunderbolt and you saying they should want USB Type-C doesn't make much sense.

Imagine someone in 2001 saying they are disappointed with new computers being released without USB 2.0 (i.e. still using USB 1.1), and you replying that things should be based on Type-A. Both USB 1.1 and USB 2.0 used Type-A connectors. The shape is unrelated to the protocol/speed/etc.