The first fragment was pretty similar to this as I understand it. Basically it was a single page, a lot of detective work, and a search that led us to CRSumner's blog. I imagine this is similarly laying the groundwork.
While the fragment may not have been the longest trail, I'd argue it's one of the more important ones. Finding it opened up a new resource for information which may well give us fragments six through eight.
I have no doubt great challenges still lie ahead of us on this, no worries.