I agree, the most important thing is that Wing Commander lives, and it lives through fan projects.
I just wondered whether there was an increase in downloads of UE and Standoff created by the release of Saga, and it makes me happy to hear that this seems to be the case. It means that people not only like Saga because of what it is, but they like Wing Commander.
So it is not only one fan project but it is Wing Commander that is brought back into people's minds, and people talk about Wing Commander. That's what counts more than any number of downloads I think.
EDIT: So basically the number of downloads may not exactly tell us how many people have played Saga but they tell us that there are several thousand people interested on Wing Commander, and if big numbers are the thing people care about, then we should be glad about big numbers because of the effects they could have.