All this logic that if we make the OT standard 2:19 then men will work harder to run faster might or might not be true. But I think that argument definitely needs to be applied to the women's standards.
It seems like a ton of women ran around 2:43-2:44. When they are quoted on their qualifying races it's always something to the effect of: "well, I went out on pace to run a couple of minutes under the qualifying time. Then around mile 20 I got a little tired, so I calculated how much I could slow down and still qualify. But then I realized I was almost done so I picked it up a little and qualified comfortably."
Whereas with the men, people who were borderline for qualifying were NOT going out at faster than 5:25 pace. They couldn't. Every race they would go out at exactly 5:25 pace and just pray that they would somehow be able to hold on. It seemed like for every local training group of 6-8 guys who were sub-14:30/30:30 types, assuming they made regular attempts to qualify throughout the window, maybe 2 of them would be lucky enough to hold on and run 2:20-2:21 in ONE of their races (falling off in the other ones, running splits around 1:11-1:16 or something like that). But for those 2 guys there were 4-6 other talented and hardworking training partners that went home empty-handed. Whereas it really didn't seem like there were that many women who trained with all their heart and soul but still only got to 2:50.
For the men who were fortunate to have enough talent to break 2:20, they knew that they had to run their best, if not before the trials then at least at it, to hold off that group of 2:20-2:21 guys. So basically everyone in the 2:16-2:25 range was training his ass off. With the women though, we have a ton of people who ran 2:43ish and are just happy to be at the trials. And there is a huge gap between them and the sub-2:39 types that might actually be in the top 10 in the race itself.
my $0.02.