Comment by peteforde

Micro USB is relatively brittle and can only be inserted in one direction. It means you have to make sure you have the old cable for this one thing. There's no USB-PD and you can't do USB host mode.

USB-C is the opposite of all those cons: much more durable, not directionally opinionated, you can use one cable for everything, you can do USB host and USB-PD.

It's also clearly the future everything is standardizing on. There's value in embracing that, since it is a Reference Board.