And God uses a willing heart, not the one who's the most talented. If you're willing to follow the programming, then you're a good tool for the Lord to use to provide music, even if you don't understand what you're playing. lol.
Isn't this the main point? What are we playing for? For God or for the music's sake? And how many times have we pulled off an amazing lick, run, chord formation, sweated at honing our musical perfection, only to hear from our wife/friends/congregation after asking them 'Did you think I played well, wasn't the band cool?' only to hear - 'I dunno, I was worshiping God & also I can't make the bass out anyhow'

(my wife is notoriously bad at singling out instruments)
I think it's unwise to say that it's pointless having sheet music, there may be spontaneous worship, and gospel's dynamics are way higher and more complex than CCM stuff (as I have said before G D Em repeat

) but there is still need for a 'base' of the song and not all of us can play by ear or practice with the band much to gel instantly.
I think with gospel churches, music is seen as way more important than churches where CCM is played. Sometimes people in CCM driven churches can think that music can destract from the work of God (peaceful silence when people are coming forward to be prayed for, for example) whereas in gospel churches, music can be seen as enhancing it (stirring up the anointing, preacher chords etc). Also, gospel music is so rich and so ingrained in the people who sing and listen to it and this of course encourages more musical excellence, exploration and letting the music take you off in different directions. It has driven me mad in my churches ( I go to CCM churches although one band I play in are excellent musicians who did a gospel concert with Daniel Johnson from The New Breed) where there is a cool bit in a song but the band members can't be bothered to play outside the box or just are lazy and miss it out, playing straight

Also most of the musicians need written music to follow as they don't practice enough together as a band and just turn up on the Sunday. I have seen so many after church gospel videos where the band jams, this virtually never happens in my churches. There aren't many gospel churches here in Norway
I need sheet music when we haven't practiced, although I am a very confident bassist and know my scales, my biggest weakness is playing playing by ear on complicated stuff, I can play by ear to a large extend but I am not totally confident playing blind. Maybe if we practiced more
So notated music shouldn't be seen as a weakness or lesser abled musicians would be totally put off playing. And isn't it the churches responsibility to bring up new ministers? But of course we should strive to be the best we can, because that is what God deserves. But if only God would answer my prayers and give me that Ken Smith, I would surely play better and there would be no sheets of paper in sight, promise

...