No, but only from lack of appearances. We saw him all of 3-4 times before he got pawned. Which is why I mentioned it (it seemed pertinent) but didn't comment directly on the match.
Personally, I think it would be hard for anyone at low herald to completely kill DM. Doom's attack output would have to be epic. I really don't think he'd be able to. But as Aurora showed, there may be alternative ways of confusing him or making him docile. So I can't see Doom winning, but I'm not as familiar with him as some. A character as versatile as him always has some options.