Different lyrics database

Hey, i was just wondering, there are like lyrics for one song out of ten or twenty, and only for really popular ones, why just not switch database? I know Deezer right now uses lyricfind, but they don't even let users add their own, Spotify and Yandex music are using Musixmatch as database, And most of the songs are synced or at least have lyrics, and if now, they will be added like a week or two after because users add lyrics by just going to Musixmatch app and syncing them up or adding, there are even translation of them for non native speakers!