Full body spinners are still a thing, see Gigabyte and Captain Shrederator. Unfortunately, their performance tends towards "middling" due to control and reliability issues.
The full body spinners struggle to keep spinning, as the forces of impact tend to ping-pong them around the arena. As long as their opponent can tank a hit and has a halfway competent driver, the spinners tend to end up corralled in a corner.
The latest season has an absolutely incredible match between Gigabyte and Hypershock.