I already carry a dongle to convert Thunderbolt to VGA, because you can't count on conference room projectors having a connector made in the last decade... Now I just need to carry one more for HDMI.

I'm fairly certain that a USB-c to standard USB port will also be a dongle that every Macbook Pro owner will need to carry. Apple should bundle 2 with every Macbook Pro, but the whiners would still complain...