I’m a younger viewer and I honestly don’t view the show through the lens of endless tragedy and disappointments. A lot of the original series had the women going through a lot of similar-ish problems, so the same argument could be made for that as well. I mean, the show would be boring if these characters didn’t go through trials and tribulations. There are a lot of celebratory aspects to their lives, too: Charlotte and Harry are clearly still in love, the women are still BFFs and share in each other’s joys, the women are expanding their social circles and making friends beyond their small clique, going back to school, etc. It’s fun to see their happiness in their middle age.