Now that people are actually reviewing them, it seems very clear that you can pair AirPods with anything that does Bluetooth audio.

Would you like to revise your priors concerning Apple products?

Reports at the keynote were saying they were not pairable with other devices. But it indeed seems they are.

Not really; people who had preconceived notions of what they thought Apple would do were reporting this. And those people were wrong, and perhaps their preconceived notions are in need of revision.