Slowly becoming a BIP21 maxi - if we deploy new address formats and extensions as URI params it’d be the only address format you can still read years and years later.
Discussion
Guessing this is in response to the new silent payment format, but then what about this part of the BIP: Therefore, a URI scheme should not represent an exchange of personal information, but a one-time payment.
Which BIP? And, also, BIPs are how people use them, not what the text says :)