Somebody from Reddit or Twitter figured out what the data underlying means.
It's not referring to individual corruptions like the OP suggests; it refers to batch #s.
This means there is a fixed rotation of the batches, and the batches themselves are fixed. The rotation of the batches is designed to look random from an outside perspective, though, since it is: 1, 2, 3, 4, 5, 6, 7, 8, 4, 8, 3, 1, 6, 2, 7, 5, 2, 4, 1, 5, 3, 6, 8, 5, 3, 8, 4, 6, 5, 2, 7, 1, 7, 5, 2, 1, 8, 4, 3, 6.
Kind of embarrassed that I didn't see the pattern myself when I looked at this briefly 2 weeks ago. I was like: "huh, 39 entries, but there's 52 corruptions, wut" and "groups of 8, but there's only 6 on the vendor right now".
I wasn't following the 'groups of 6 on the vendor right now' to the logical conclusion that there must be 8 batches in order to rotate through 52 corruptions in groups of 6-7.
The fact that there's only an order for 39 batches suggests that 9.0 will be out before 19.5 weeks from the start of this system.
Edit: That said, they could add order to it very easily.