AZ, ehrre did you get that from? I was under the impression that long term learners stay away from SYAS because it is “the Internet”.
I think the problem is that people consider SYAS a sort of last resort and won’t even sign up for it until they’ve been in shidduchim for awhile (I assume this is the Internet stigma or just the stigma of not dating in the “classic” fashion). Girls feel “old” sooner than boys so therefore the group of boys on the SYAS island is much smaller in number and older in age so the shidduchim being made have the same age gap problem as classic shidduchim.