Yeah, I liked the mother with Ted so much that I guess I would have been fine with her still dying if the endgame wasn't Ted and Robin. After all the on and off again stuff with Robin though, the Mother was always going to end up as the silver medal.
Someone else somewhere said that in order for Ted and Robin to get together they had to sacrifice the life of the Mother and Barney's character. Two things that they spent years building up just to trash it all in an hour or so. Also, the mother's name is Tracy (if they said it during the show I think I missed it but it was in the closing credits).
I will forever be annoyed that Ted got to have his romance with the mother and fulfill all the different things that he said he wanted in a woman yet still end up with the woman who didn't embody any of those things but still loved for ever and ever. I'm sticking with my idea that Ted and Robin, regardless of how they've changed over the years, will not work in the future. They get together and break up and get together and break up and one of them will die before they settle on whether they should have just stayed together all these years.