Yes, for Apple Homekit for example the long term keys for bonding are stored online, so this means you can access from a different device without the authentication process.

For headphones it doesn't make much of a difference. However, if you're manufacturing more devices that all needs to be setup and shared with multiple people it's a pity that the key deployment is Apple-only. That is, I don't know of an official way to get to the keys to get a seamless experience across vendors.