Well said.
For the Believing community, the PGF IS their champion. It's their hero. It is their best-case evidence to prove Bigfoot exists.
For the Skeptic community their hero or Champion ends up being anything they perceived which disproves the PGF. For them, it's Longs book. Also, there are other things the lazy skeptics will latch on to This includes any news story about someone who came forward and confessed. It can be some story they heard where AI video analysis saw a bell pull zipper on the PGF suit.
I would say the more believer scientific approach of people like Meldrum, Munns, Bindernagal, and so on have created a playing field where the skeptic or science skeptic will at least sit at the same table as the believing community.
Just like UFO movies (Outer limits, Twilight zone, ET, Independence Day) have entertained the public they have also soften the public on the subject of UFOs. Now if the government wanted to spend 100 million dollars on some project involving the search for extra-terrestrial life the public accepts that as reasonable.
The same thing has happened- at least a little bit- with Bigfoot. As Messin' with Sasquatch or Discovery channel puts Bigfoot in their mind they tend to soften the "Bigfoot is fake" position. To any extent these things help increase the serious nature of the subject, I consider it useful foolishness.