You are very correct about the scarcity. /40 should be the most limited in NRL releases. We don't have a hobby like the NBA where there are multiple companies producing the cards.
The other concern I have is that every ESP release some dealers receive their product a week or more before others. I certainly don't begrudge the dealers making there money back as they are vital to the hobby but if X amount of cases are allocated to dealers and lots of these super rare MOJO'S limited to /20 are busted then it is not fair to the average collector. There was a theory that the first 200 cases for 16 Traders that came with a Duo as the case card seem to have been stacked. I don't know how true this was but it certainly seemed as though nearly every one of those cases had a second duo and / or a legends signature. If this were to happen with Elite and stacked cases with the very limited cards were provided to some and not others it would be disastrous.