The passages quoted there are considerably less incendiary than the text surrounding them claims, e.g. the very first one concludes that they shouldn't use their professional sites to fight harassment, only their personal accounts. Fighting against lies and harassment is not "pushing an agenda and silencing one side of the issue"--and I want to remind you, again, that the corruption allegations against Quinn
are provably lies.
Regardless, in the worst case, since the GameJournoPros mailing list has not been publicly released that I'm aware of, your source and mine are equally cherry-picking to support their views.
You should be aware, however, that the source of your cherry-picks is Milo Yiannopoulos. Milo has, ironically, also been implicated in organizing journalists to push a narrative, only his journalist friends are literal, self-described Nazis. https://en.wikipedia.org/wiki/Milo_Yiannopoulos#Leaked_Breit... So I would be very, very wary of taking him at face value on any subject involving women or politics.