Hey, that's why they increased the number of USB ports. Also, reserved likely also means 'if you don't want BT or wifi you can use the port for something else, but if you do, it must be in that port'.
It's not that big of a difference, actually - if you want to use more stuff, you'd start looking like a porcupine anyway (and it wouldn't be too healthy for battery life either).

Edit: where'd the OTG go ? so it's 7 and not 8... must learn to add single digit numbers...