Not playable command. Too many exceptions + no Reimu or Marisa. Needs at least the full playable cast of at least one main danmaku game, AKA the ones with Reimu and Marisa. Exceptions are only made for side games if that criteria is met.
Shou, Rin, and Clownpiece are nowhere near playable.
If you think about it... -Sakuya: frequently playable -Youmu: frequently playable -Reisen: frequently playable -Sanae: frequently playable (almost a third protagonist along Reimu and Marisa) -Orin: ? -Shou: ? -Futo: playable (on fighting games) -Seija: HAS HER OWN GAME -Clownpiece: has her own manga