What kind of "evidence" beyond the content of the signalling itself it would require? I mean, sure one could make a detailed critique of the article to show why exactly it fits the term very well (TLDR version would be it tries to police the well-understood usage of the term that describes real phenomenon and is useful to prevent imaginary offenses) but it wouldn't be "evidence" - it does not introduce any new facts, only one's opinion. The only factual "evidence" necessary is the content of the article, which is already here.
> Is that not enough for you?
Not even beginning to be close to being enough. Winning would be going back to the times where you can discuss political topic without fear of your life being ruined and your livelihood being taken away from you. Winning would be where there aren't thousands of people actively searching to hurt other people for disagreeing with them. Winning would be not having dozens of people in a lot of corporations specifically paid obscene money for pushing idpol. Winning would be forgetting the meaning of the word "cancelled" that we learned in the last decade. Winning would be for the culture to change so that trying to hurt people for disagreeing would be shameful, not praised. We may have hope for it to happen one day, but we're not even close to being true now. It may take years or decades - just it it took decades for "woke nonsense" to take root in the culture - and may very well not happen at all, any election results nonwithstanding.