Why do you think it's not? I don't see any reason to blame the newest generation for anything? If anything they should be commended. I'd imagine it's pretty easy to follow the Dons when they're winning week in week out and lifting silverware and there's very little other football available to watch on TV. This 'newest generation' who turn up week in week to watch utter shite despite the fact that for the price of a single ticket you can get a whole month of the best Italian/Spanish/French/Dutch/German/English football on your telly.
So, less patient? Nope.
Well the ultimate blame for losing these games is down to the players, but the board should also take a lot of the blame of how bad the players really are.