No, but people not satisfied with what Spotify has are like a tiny percentage of non-mainstream music listeners (whether one can point to X major artist not being on Spotify does not really change that. Even if it still didn't have the Beatles most users could not care less).
It isn't about "major artists". Fuck them, their music universally sucks. It's about underground artists, unsigned, or anyone locked out the bullshit distribution model that is shoved down artists' and the public's throats. It is a very large community.