Good points, I think mostly we have a philosophical difference. I don't view the Sharks as failing. I think they've been one of the premiere teams in the league for about 13-14 years. The goal of my fandom is to see my team win a cup, but I'm not the type of person who believes change is necessarily better. Idea's like that might have lead to guys like Yzerman being moved and Detroit may have never won a cup.
You mention that I only hold players accountable and not higher ups, which really isn't true. I've just been arguing that I think DW has done a good job and people who are mad we haven't won a cup blame it on the top guy, which is fair, it's just not my method. Like you said sports are different than businesses and I do believe in team sports a manager can be doing a great job without seeing the results. I will gladly place blame on Wilson when I think it is called for. Ehrhoff trade being a solid example as well as some of those contracts that were offered to aging/declining d-men 5-7 years ago. Or maybe passing on Barzal and Connor 3 times like the Bruins did. I think the majority of his work though has been positive.
I don't believe "luck" is the reason the Sharks haven't won a cup. I don't believe it's Thornton being a playoff choker. I don't believe it was even Nabby/Niemi. I do believe it is because the Sharks, unlike all of the cup winners since basically the beginning of time, have never gotten hot at the right time. We've had the talent to win the cup, I firmly believe this. Problem is some group struggled at the wrong time and the other groups weren't able to push enough to carry the team. It was either the defense, the goaltending, the offense, the top guys, the bottom guys, the coaching. You name it, at some point they failed us. Not because of talent, it was because of some unproven factor.
That simply won't work in the generation of Western powerhouses that we're in. If the Sharks were in the Eastern conference I have no doubt we would have made the finals several times by now, but possibly even won a cup. These aren't excuses that I'm making for the team, they are observations. The Western Conference has been the best since the 90's and in some seasons it's not even close.
With the exception of the first of the recent 3 cups the Blackhawks have won, I don't believe a single team that won the cup was better than some of those great Sharks teams (including this years team), but this is why we play the game. On paper doesn't always translate to cup.
So my point of writing this is, I actually don't blame anyone, players, coach, GM for the Sharks failures. In certain circumstances I'll blame goaltending or defense, or lack of scoring but there is no 1 ingredient that I think results in us having 0 cups. As fans and analysts we invent things such as "clutch", or "complete" or "choker" to describe teams and players but it's all horse crap. There is no science from one season to the next that results in a cup other than, scoring more goals than your opponent.