I agreed with you overall. I quite enjoy listening to his music. He's talented as well. He's a good piano player too. The one thing that lacks in him is probably the charisma.
That's too bad, because Mark seems to have it all.
( To us ladies anyway!) His song writing skills is not quite in the same league as Mark, but he's pretty good. So, absolutely yes to your question. If he's ever on tour near where I live, I will definitely go see him.