Surely if Keith Richards could still play guitar, they would not need Andrew Watts guitar playing ?

It is so obvious, in a bad way, that most of the guitar on this album is Andrew Watt. Even if Andrew was going to write songs, if Keith could play, wouldn't they have Keith play the guitars in order for the album to sound like the Stones? So, can Keith Richards not even play guitar in the studio anymore? As many others are pointing out, this is a Mick Jagger solo album.