Having just recently finished the SP story, I am more than happy to offer feedback, while avoiding spoliers for those who have yet to experience the awesomeness that is CF 2.0
I don't even know if there was another viable option (suing old savegame, etc.), but I played through the whole thing from the beginning, and I'm glad that I did.
I am very impressed by the pacing, as well as by the overall progression and explication of the story. Particularly, I think that the balance is great among missions where you have to actually fly there and back (whever "there" and "back" might be), and those where, for example, accomplishing the mission goal results in a "jump" to something like "Four weeks later, having returned and reported...".
Whoever made those decisions made them very thoughtfully and intelligently. The story did not seem to be "railroading" me--except for the natural, believeable urgency built into the story--nor did it seem to be bogging down in yet another long, relatively uneventful flight back to somewhere to report, or bring found object, or whatever, I was seriously impressed with that.
The way that the information was revealed was done very well, even for a player who went all the way through 1.9 and more or less knew the background story. It was actually interesting and attention-grabbing nevertheless, and that's quite an accomplishment.
The "loss" referred to was sad, but not forced, and definitely "absolutely heroic and worth being done".
The secret bonus mission was done well, too, and worth the trouble IMO. It was a little hard finding the place, but that's as it should be, I believe. The possibilities it opens are thought-provoking; I hope someone decides to take action on them, someday.
As for the end of all conflicts...it would be nice to believe so, but I am a student of human history and an observer of the world around me, and of the people (and governments, and religions, and other organizations) therein. I do not think that there will ever be an end to conflicts, even when logic would indicate that as the best path for all. We humans are a stubborn, emotional, combative species, and I don't think that will ever change.
Thanks very much to all the developers, and congratulations on a job very, very well done!