As if BIOS is any more open than UEFI is. At least UEFI had an open reference implementation since the beginning. BIOS had to be reverse engineered from IBM's implementation AFAIR.
Besides, two wrongs don't make one right. BIOS was a clutch from the beginning (it was probably appropriate for the time tho) and we should strive for better. We should keep functional systems working of course (e-waste is a real problem), but we shouldn't keep using it for the new stuff because we see the past with rose tinted glasses.
Rather than push for the past we should push for the future, for having all boards ship Coreboot and have that support upstream instead. That's how you achieve openness, not by sticking to _proprietary blobs_ of an outdated interface.
