I will repeat what I said earlier, which is that just because someone has this facility to 'sing the phone book' that does NOT mean that every single thing they have ever sung is good. That is what I was trying to say before, and why it gets down to the quality of the songs, no matter how good the singer is. So no, I do not think a lame and bland effort like Can't Stop Loving You is good, just because it's Phil singing it.
However, as you mentioned Mark Knopfler, well, for me, HE could sing the phone book.
Also, the phrase "they could sing the phone book" is debunked by someone like Celine Dion. Quite possibly the finest pop voice ever, but eternally a hostage to the contributing songwriters [...]
Phil isn't in the "Celine" category as a singer, by any means, and he's far from a great songwriter too, IMO.
Sorry, but your statements leave me flabbergasted.