[Blade Raider]

Yes and no. If the character is officially called a Kamen Rider, it's going to have toys regardless of if they're a villain or not (Save for a few one offs like Jam). Also, a lot of villainous Riders either turn from evil to good or good to evil with few exceptions (like Cronus or Sigurd). For these reasons, I don't fully count villainous Riders as making more villains as I do making more Riders.

Figurarts still makes a non-Rider villain here and there, but mostly as exclusives (heck, a lot of the Riders are to). Feels like business as usual. The one area things have really changed in the past few years is candy toys. Between Shodo VS and SO-DO, I have way more monsters and grunts than I figured I'd ever own from Kamen Rider. There hasn't been this many Rider monster toys in stores since the 90's Banpresto line (side note, they're the same size as Shodo VS).

So yeah, I'd say there has been an increase in villain toys between monsters, grunts, and even the villainous Riders.