The difference, fundamentally, between our viewpoints is that apparently I'm actually more skeptical than you are about the future.
I don't believe the Pens are likely to win the Cup again any time soon, no matter which path they take. I also don't think they make it back to the playoffs any time soon if they commit to a full rebuild - they'd be dropping down to the bottom, and then have to once again overtake a whole bunch of other teams that are already farther along in their rebuilds.
So, I'd rather just stretch things out with this group for a while longer. I'm fine with sitting with nostalgia for a bit, and sticking with the "relics" that are still scoring at a point per game pace. Surround them with good, younger players, and they might even be able to win a round or two.
When it comes to Sullivan, we're just going to have to agree to disagree. I haven't heard anything directly from FSG that was anything more than standard executive-speak. And all the other reporting about his place with the organization is coming from the same people in the same posts where they're posting rampant speculation about who FSG is interviewing for the GM position. So pardon me if I take that with the same size grain of salt as I do the reporting on the GM search.