All of the results sorted by qual time are available on the registration stats page.
It is not that they are making it harder to qualify just for kicks, it is just that the number of folks who DNF'ed with those qual times vastly exceeded the number who were able to finish.
And it is also not about age, half (9 of 18) of the 2+ hour GoG folks were under 50.
In the case of the GoG qualifier, there were 18 folks who used that race with a qual time over 2 hours. Of those 18, 14 of them did not finish. That is an 80% failure rate. And it was a dramatic dropoff compared to the folks who could do it in 1:50 -> 1:59:59 (18 folks, 14 of whom finished and only 4 dnf'ed. The exact opposite of the 2+ crowd. )