Why don't QubesOS recommend libreboot?

[kzlz]

Community-recommended computers

R4.1 Note: upgrading heads/coreboot is required for R4.1 install to work. Laptops brand model CPU max. mem in GB (slots)[1] USB ctrl.[2] core boot[3] note Insurgo PrivacyBeast X230 i7-3520M 16 (2) 3 yes certified, pre-installed Lenovo ThinkPad P51 i7-7820HQ 64 (4) 1 no ThinkPad T430 i5-3320M, i7-3840QM 16 (2) 3 opt ThinkPad X230 i5-3320M, i7-3520M 16 (2) 3 opt developer-tested Nitrokey NitroPad T430 i5-3320M, i7-3840QM 16 (2) 3 yes certified, pre-installed NitroPad X230 i…

For example, this page mentions coreboot but does not mention about libreboot.

Libreboot – ThinkPad X230/X230T external flashing

But one of the community recommended computers, X230, supports libreboot.

What is the reason?
Can someone familiar with this please tell me why?

[unman]

libreboot is nothing but coreboot.
At one time libreboot stood for something distinct - it included only
free software. If you wanted coreboot images that included only free
software, libreboot provided them.
The developer has chosen to muddy the waters, by using “libreboot” to
cover both coreboot images that include non-free elements and
coreboot images that do not. i think this is deliberately misleading and
false advertising.

I never presume to speak for the Qubes team. When I comment in the Forum or in the mailing lists I speak for myself.

[kzlz]

I was worried that QubesOS would not work with libreboot.
Now I can safely install libreboot on my Qubes laptop.