It's a very unreliable proxy, especially for this sort of thing, but EDDN-recorded jumps into the Titan system give a rough idea. We're looking at similar amounts of effort as were put into Leigong at 10 or 14 Controls, probably - rather than the much larger numbers showing up for Leigong at 3, or Taranis at 6 or 7. It's certainly true that Oya at 7 is tougher than Taranis at 7 was ... harder to say how it compares with Leigong.Do we really have enough information to say it's down to a low turnout? From what I saw there were plenty of CMDR's whenever I was there, with more people knowing what they were doing and also less likely to break the instance than with Leigong (although yes, a lot of broken instances nontheless)
Do we have any way to measure number of CMDRs, number of attacks/missiles, or are there assumptions that High Oya = High Leigong and so on
(Still, progress is for now slow enough that it's unlikely that a Leigong-3 level of attack, if anyone had a way to encourage it, would be enough to deal with it in a week either)