I'm saying this because there is a lot of first party games on switch in similar situation, they are far from being a failure, but for nintendo it probably wasn't good enough compared to the heavy hits that sold 20 million+
I read the save file is linked to your NNID so won't work on other Switches but not sure if that true, or if somebody figured out how to patch that out. Maybe why after all these years, no save has appeared for it.