Because for the bulk of users, unless they are power users, all they need to know is that things didn’t work.
Things actually useful to have on the BSOD:
- distro-specific instructions for submitting a bug report
- option to reboot
- option to show debug info
- option to show a qr code that submits a bug report
- and, if configured by the distro or system admin, debug info
Any information given would obviously be for use with another device.
QR code, for example. These are instructions or information about the crash, not links (except the QR code, which would obviously be read by another device).