unsung and underappreciated brains

In what version is Velma any of that. Like, I can't think of any version where she isn't the only real character doing the Mystery Solving part of the operation. Shaggy/Scoob will luck into random things happening, and Fred will often physically operate a plan, but she does all the narration and idea building.

Even if we give that as true, better shows have already did it. Both the liveaction and Zombie Island (two of the most agreed upon top tier pieces) dealt with that topic, noted it was her own inferiority complex more than reality, and moved on.

What I'm saying is, like always, they have no idea anything about the source material and likely consumed minimal of it beyond "vague nostalgia from my childhood." Thereby just assuming their vague memory as fact, and made an entire fanfiction off that misassumption.