Then you haven't been looking. The issue is that some people have this belief that Dubas is the devil and is single-handedly destroying a dynasty team, so anybody that doesn't despise him with every essence of their being, or anybody that corrects the lies and misrepresentations that are spread about him and the things that happen, are considered to be in love with him, when they're really just a fan of reasonable and logical fact-based evaluation and legitimate hockey discussion.
His playoff results do not suck. His playoff series outcomes haven't been good. There's a difference. It sounds like the problem you're having is just putting way, way, way too much emphasis on the team's contextless playoff series outcomes when evaluating the GM's overall performance. I know that those outcomes are important to you, just as they are to me, but that's far from the only measure one should be using.