Having been on the other side of those conversations, I understand where he's coming from, but I also would say he definitely doesn't speak for all shluchim. Keep in mind he's a shliach on campus. He probably doesn't have a daily minyan, and likely doesn't even have one on shabbos when school is out.
Ain kan makom l'harich, but I will say that many, many shluchim are overwhelmed (and even abused) by frum vacationers treating them like a concierge. These people have busy jobs, and communities to cater to, in addition to their family lives. Please keep that in mind, and be respectful of it, when dealing with them.