Definitely seems aggressive, and outside of creating mental toughness, very little application to a lacrosse field I would think.
Coaches at the D1 level get involved with some form of training usually as form of punishment but the real stuff is left up to the trainers.
I know a guy who is a SEAL and a Ranger. He passed SEAL training and was waiting to get deployed and had 6 months to kill so he became a Ranger. SEAL folks told him he would no longer be a SEAL if he didn't pass the Ranger training. He did. Said the Ranger training is significantly easier than SEAL training.