Well it's two-fold:
There was nothing wrong with his performance, no shame in not signing like you're 22 when you're pushing 40 and have lived like him. He sang very well anyway IMO
Secondly, regardless of who wrote it, it wouldn't be like the most famous song of the 90s but for him singing it in the first place
Watch out, for as soon as it pleases them they’ll send you out to protect their gold in wars whose weapons, rapidly developed by servile scientists, will become more and more deadly until they can with a flick of the finger tear a million of you to pieces
RIP Craigos. A true CW legend. You will be missed.