

Wizards of the Coast spent lots of time in meetings with Bioware to make sure every damn detail of D&D 3e was implemented according to the book. And even longer time micromanaging the campaign design. A lot of the scenarios are essentially repeats of the others - “do these four smaller thingies and then go kick the main baddie” - because getting that approved by WotC was easier.
Why are there so few D&D games these days? Why do video game dev houses want to make their own RPG systems instead? Well, they don’t want the headache of dealing with WotC.
Well, if the single sentence description is supposed to also describe the popularity, then every musical group in Wikipedia would need to be described by that metric. It might get a bit absurd very fast. (“…a bit obscure band which was really really big in Japan at one point”)
So how big were the Spice Girls? Well, they were big enough to warrant a Wikipedia article, if that is any metric worth of anything. I guess if you need to compare statistics, perhaps you need a deeper dive than a single sentence summary!