> I've also returned a few USB devices that ship with a USB-A to USB-C cable and ONLY charge in that mode...

By "that mode", do you mean "1.5A @ 5V" permitted by BC, or do you mean "3A @ 20V" permitted by non-type-C PD?

> Like, who in the hell would design a device that has a USB-C port on it where only a fraction of chargers will work on it.

Who in the hell would design a charger that can do Type-C PD but can't do either pre-Type-C PD or BC? Does the charger in question also shit the bed when a USB 1.0 device attempts to draw 100mA @ 5V? I hope not! Were it me, I'd return that crappy thing for a refund.