That's certainly true. I think it also makes the point that Samnee is not a competent artist, no matter how many awards he gets. This is a genuinely pulpish and darkly expressive style that Samnee seems to aim for, but doesn't get because he's just too clumsy.
And yes, the depression and illness thing is a very small part of DD, though Waid keeps pointing to it, and saying, "See, this isn't a kid's book!". Every now and then, he comes up with a decent panel, but then buries it under 20 bad ones.
Exactly!!! The little good and he does do and that is very little, he buries it with a bunch of cheap one liners and bad gags