@cardinal I don't think your original bug report for this issue was optimal (https://bugs.funtoo.org/browse/FL-11069)
I think it identifies the wrong problem.
The real problem here is not that there was a blacklist installed -- the real problem is that by default, the nvidia-drivers are not supporting a legacy card. This is not optimal and if the nouveau drivers are more compatible with all generations of NVIDIA cards, it makes a more reasonable default for our DE stage3's.
Therefore, I am thinking the bug should be "default nvidia-drivers on stage3 lacks support for legacy NVIDIA cards". And we would explore nouveau by default as a solution. Then we would incorporate the nouveau blacklist into nvidia-drivers so it installs only if you opt-in to the official NVIDIA drivers.