The problem that most people have isn't that Ted eventually ended up with Robin, its how they got there. If this was their planned endgame all along then it should have been a story that was told in maybe 4 or 5 seasons. Instead, the creators and CBS got greedy and dragged the damn thing out.
They drove the ted/robin storyline so much into the ground that I think even the most devoted shippers got sick of that relationship. The scene this season where Robin floated away was AWFUL
They spent the last three years growing up Barney and making it seem like Barney/Robin was an important relationship that might have lasted. I mean they spent the ENTIRE last season devoted to their wedding weekend. And then they blew up the whole damn thing in the finale in less then 20 minutes and regressed Barney back into his same old schtick. :x I feel sorry for anybody who cared about their storyline
The scene where Barney met his daughter was a nice acting moment for NPH but it was totally not deserved for the Barney character because of everything that just happened before. Oh this time you're changed for real now? Ok.