whats the harm in making the trials 2:25? roads are already closed, the streets are massive, they basically have the course blocked off for 3 hours anyway. never made much sense to me why they wouldnt allow the top 500 US marathoners into the trials
The same reason they don't allow the top 70 10k runners into the trials. It becomes a hindrance to the contenders to win and you may have a potential medalist fail to qualify.
Personally, I think they should have a cutoff for the marathon of 50. There are too many allowed in.