What an odd and melancholy ending though. It's like it assumes that these guys have wrecked things so badly that the movie can conceive of no possible repair or redemption any more. The only chance is to tear it all down completely and build it from the ground up, complete with new lives and new loves.
I'm not sure if that bit works or not - it was either cheaply sentimental or deeply cynical, I haven't decided which yet. I mean, they never live all those years, they have no memories of them, nothing. Can you just dump these sad people into happy lives and assume it all works out? Only Lou got to live everything twice, and presumably the only reason he made it is because he'd gotten this fantasy second chance. What hope for those who have to live life the old fashioned way, with no rehearsals beforehand? "Races condemned to one hundred years of solitude did not have a second opportunity on earth."
The rest of it walked that great line of funny and tragic that I love though, so most is forgiven. Yes, even with the crudeness and the sexism and the reliance on projectile vomiting to generate laughs. There's something about that kind of humor, dumb and simple and hopeful, that seemed to capture the energy of being young and happy and sure everything is always going to stay that way, even as it sours into adulthood and disappointment.
And I'm sorry, but Chevy Chase was as boring here as he mostly was on Community.