This is not a request for ReBAR support per say. Please read ReBAR Support - #39 by Lee_Holbrook ReBAR is presumably already supported, but behind a hidden BIOS variable but to know which one, one needs the BIOS binary blob.
And again, ReBAR support is only one use case. I guess other people might want to mod their BIOS for other reasons.
They have so far. Especially regarding the BIOS updates.
Because ReBAR support for 12th and 11th is already there because we have the BIOS binary blobs.
And again (again) other people might want to mod their BIOS for other reasons.