Battlestar Galactica: a post-mortemS

So I finally finished the series last night. I've got to say, I do not understand for the life of me what everyone has against the final season. I loved every episode of it, including the ending.

I was expecting a train wreck, but every single character got a fitting send-off (except for Skulls and Racetrack. I would watch an entire series of those two just giving each other shit in a raptor for an hour,) and the ending just reinforced the whole cyclical theme of the show.

Heck, even my wife liked it, even though trying to explain to her who everyone was since she only started watching it with me in the third season was nightmarish (even with a dry erase board!)

Thoughts? Why does everyone hate the ending so much?