Is it? Is it really supported and supported on smartphone HW?
Because I see only few phones supported officially, where most of them are their own. Also support you have is not that kind of opensource linux support. i would not even start about the lack of their eco system and proper app store.
Btw regarding "at the moment" - if you pay attention most of the founders left the boat and started new projects, so not sure if you are talking about same SailfishOS I know :P