That's true. More-modern phones can be IP-rated without a cover for the USB port like the S5 required.

That doesn't mean that a modern phone of vaguely S5 shape, with an S5-esque battery door, can't be fitted with a more modern USB port, though. Does it?

They seem like very unrelated things.

(Those modern ports, by the way? They're pretty slick when they work right. They detect moisture and turn off the bit of normally-externally-available power to help prevent galvanic corrosion.)