“When I said that the girl has to respond quickly if the boy already agreed to the shidduch or risk losing the date, I was criticized”
I think you might be taking something out of context.
“but if you are flying in it’s okay to stack them up.”
I never said that. I spoke about having a list of possible guys to go out with. Not the same thing.
“After a 23 hour flight the girls is to meet 4 boys within the first 10 days”
I never said that. I spoke about going to America or Israel for approximately a month with a list of at least 2 possible boys to date while you are there. I never said anything about arranging the dates beforehand.
I have never actually arranged more than one date beforehand, if that much. Personally, I have never dated on a trip that was less than 3 weeks, and even that I only did once. On that trip, I went out with 2 guys, and I had plenty of time to see friends and former students. The trip was worth it for that (seeing friends and former students).
The other times, I went for the summer. I didn’t have any dates arranged beforehand, but I did research and knew that there were guys to go out with and that it made sense to go both for shidduchim and other reasons. Once I was there, I realized it made sense to stay longer (either for shidduchim and/or for other reasons) so I did.