I don’t understand this question, like literally how? The process has not changed.
The FSF recommends CC BY-ND for works which state a viewpoint (opinion) to avoid being misquoted. To distribute a modified version of the website would misrepresent the authors who wrote it, which would serve no useful purpose.
IANAL but the licence prevents me from modifying it, which means that I'm not allowed to make any changes, not matter what. Me making a PR would be me breaking the licence.
> The FSF recommends CC BY-ND for works which state a viewpoint (opinion) to avoid being misquoted.
And FSF is silly in many ways. Who would you be misquoted by? Also misquoting is illegal if it was done with malice, just like how breaking licence terms is illegal. And keep in mind that to prevent either, you need to be ready to go to court :).