You can edit a hundred million dollar feature in Quicktime Pro 7 also… doesn’t mean there is any advantage to doing so. And doesn’t mean if someone is crazy enough to do it that it validates it as an option for these types of projects.
If the editors chose this because they like the way FCPX works, the interface and cutting tools, then I guess more power to them. Although in my opinion I can’t see how any of those features outweigh the negatives of dealing with a project of this scale in X, other than “let’s do it to say it can be done.”
Curious to see what their motivation was when this comes out.