Velma wasn’t bad because it was a shit version of Scooby Doo, it was terrible because it was a shit version of Daria. Kaling really doesn’t have the voice-acting chops to pull off repeated monologuing and asides to the camera, and the social insight was nowhere near as deep as they were going for.
It wasn’t as unwatchable as the review-bombers were making it out to be, but a poorly executed version of a mediocre license is never going to be particularly special. I watched the finale of the first series, I have no interest in watching a second.