Then instead of just opening up NFC, make Google and Apple Wallet support plugins, so users can have one interface with all their cards but not tied to one payment system.
Weird thing to say given that AirPlay is also locked down as well...they're both the same. But I agree with the overall sentiment; a common wireless streaming standard would be amazing. It would mean I can use more devices to throw Samsung DEX at.
Hell, if all monitors/TVs/displays came with basic "receive a standard stream from wifi" support that would be so great for consumers, reduces friction so much.