Funny how that works. I doubt anybody would have thought the Beach Boys would have come out with something like Pet Sounds based on their original singles - they could barely play their instruments and mostly scraped by on Brian Wilson’s innate ability to arrange amazing music and harmonies. (Much like the Stones the Beach Boys’ continued existence is largely unnecessary - and I say this as a huge fan of their music.) The Beatles’ early performances were nothing particularly special and they only got good when they started writing their own stuff and taking risks creatively. Radiohead could have easily been written off as a one hit wonder after Creep but somehow they endured and created some of the best alt rock albums of our time. There’s countless stories like this in music.
One of the great things about music is how the most improbable groups and artists can go on to great success and acclaim.
But of course talent is no guarantee of success.