Eh, it's a twofer. They ended up with a white/pink/blue Spider-Gwen a decade ago, obviously as a way to differentiate spider-woman from the red-and-black spiderman (and because blue-and-pink "bisexual lighting" was really popular at the time);

Subsequently the twitter troons were latching onto that choice in colours and became the social justice darlings to appeal to. Separately the "having to hide your true self to your loved ones before coming out to them as a superhero" has been used to draw parallels to gay coming out for ages in comics/superhero stuff (like X-Men and Buffy).
In this
implied scenario I guess Gwen is trans and accepted by her Dad and then separately has to come out to him as a superhero in a way that draws parallels to the trans coming out experience to underscore the implication. This "confirms" to the twitter troons that Gwen is trans (or at least one specific version of Gwen, given that version of Spiderman isn't Peter Parker, and there was another Gwen Stacy who had kids with the Green Goblin) without actually having to do anything specific, and she could still just be a normie who had some trans allyship stuff.