I saw this on Youtube last night, it's a terrible song, but they do nail the voice. The lyrics are dull and the song is choppy, but it's getting there. At this point, if an artist created a song, they could feed the lyrics and sheet music into AI and it would produce a flawless U2 version of the song.
What AI can't do (yet) is replicate the human element, getting metre and tone right, evoking a feeling, all those human elements we are used to. It will get there, but 'The Arsonist' isn't it.