Not defending nvidia but most people who own a single gpu also play games and occasionally use it for mining.
(half a decade ago, one person I knew was getting excited/contemplating it; but he was looking to build a dedicated mining rig, and I don't think he ever followed up)
Most people with 1 GPU use it to mine? I would have guessed that even with things going crazy in the cryptocurrency space pure gamers were a vastly bigger group.