Maybe it's just me, but as I've been going through the PTs, I've noticed that recent LSATs increasingly contain answers that are hard to like. By that I mean the correct answer to a question is the best fit out of the available ones, rather than a straight up good fit if, say, taken in a vacuum.
LR answers don't seem to be as logically tight as they used to be, and RC answers require more.... mental gymnastics than they did in the past. Whether that translates to a harder exam is anybody's guess.
I don't have much of the same sentiment re: LG. All I can say about them (again, purely my two cents) is they seem to be tough because of tedium more so than anything else, for recent games that is.
But then again, maybe I'm just trying too hard to see something that isn't there.
Q15: "failed" to account for?
But they didn't fail to account for anything; they made an active decision not to account for those things because of mathematical modeling. To say they failed at account for.... would imply they attempted but couldn't do it, which just wasn't the case.
As well, the economists in question aren't referring to the ones mentioned in line 48 either; they're referring to the ones in the entirety of paragraph 4.