Well quite, it is quite simply staggering that they think they need "years" of data to figure out how this ends.
There are literally only three ways this can go.
The first outcome is that the data will indicate that the qualifying time for the NB category should be higher than the men's qualifying time. I think we can safely rule that one out.
The second outcome is that the data will indicate that the qualifying time should be lower than the current women's qualifying time. This seems almost as unlikely, given that the data will be based the performance of a mix of male and female runners who have already met or exceed the current women's qualifying time.
Therefore, the entirely predictable outcome will be that data will indicate that the average performance of runners in the NB category falls somewhere between that of runners in the men's and women's category. Presenting the Boston Marathon with the uncomfortable reality that "reflecting the actual performance range" of the athletes will inevitably mean setting the NB qualifying time above that of the women's race, thus meaning that NB females will actually have to be faster than non-NB women in order to compete in a category that is supposed to increase inclusiveness.
One would assume that faced with this blindingly obvious discrimination against female NB runners, that they will quietly choose to stick with the current status quo, thus giving the poor second-rate men a second chance at qualifying. Of course, if there are enough of them, then they might push out all the female NBs anyway.
It really is a men's rights movement, isn't it?