Its honestly a REALLY good idea. Still pisses me off that windows has had a QR code for years but it just goes to a generic support page.
That said: There are plenty of environments where a QR code is not viable. Secure environments where you cannot have a camera is one. But also most server rooms where the KVM has been abused for years and is covered in filth. What you can squint and scratch down on a piece of paper and what your phone can process are two very different things.
Linux so easy enough to have both code and text but I do have concerns on the broader impact of this being normalized.