Mac was a huge part of the run, so losing him was a downgrade on the success they had. Beyond their run, they were a bubble team. Karlsson came back but was so obviously coming back too soon and really struggled. Methot was their 2nd best dman by a large margin. They effectively rolled out the team with Ceci and Phaneuf as their best D, which is obviously an issue.
I don't think he owes the fans anything, but he chose to make statements about spending that never came to fruition, so in that sense, he should be held to it.
You can call it hatred spewing all you want, but thats not really reality. They talked up spending when the time was right many times and I guess the time was just never right. The way I see it, that roster ended up exactly as so many predicted and they were just the ones that didnt see it coming.