Its not that bad, that is a bit of an exaggeration. Dont forget 10 students become scholars and automatically leave their class voluntarily. NYCOM also accepts 320 so the attrition ratio might be the same but the numbers will obviously be higher. The only class to have this problem was the class of 2014-2015 because NYCOM tried an experiment with the help of a million dollar grant from the government to accept ironically 40 people who did not have the acceptance criteria.
NYCOM is a very hard school, and will kick you out if you fail two classes, but realistically if you failed two classes should you be there?
NYCOM lost Northshore because they opened their own medical school the northshore LIJ/ Hofstra school of medicine. Its one of 25+ hospitals that they still have. Its also not a big loss as they only took 2-3 students per rotation anyway, it is a minor loss. Lastly nobody knows what Northshore will do with residency, they might accept their own at a high rate to show a good match their first time, or it might stay status quo. (NYCOM this year did fill 5 out of 6 Northshore neurology spots.) Even if they decide not to take DOs how exactly would that hurt NYCOM? Most of NYCOMs matches were not at Northshore in the first place.
As far as rotations was it not Touro that lost its NYC rotations? Is it not Touro that has a severe shortage of rotations? Was it not Touro that had to beg and pay to join NYCOMEC for NYCOMs left over rotations?
In all every school has downsides and upsides you must know them all when you apply, however in the Touro- NY vs NYCOM arena NYCOM will give you a must better match, and chance at specialties. (compare the match lists this year if you dont believe it.)