I don't care where the connection occurs--but definitely NOT PHL--I never book a connecting flight that has less than a full hour of time to make that connection (and I prefer 2 hours). As a flight attendant with American for 15 years, I had way too many cases of landing on time, then waiting 30-40 minutes (or longer) for a gate, or if we had a gate there was no agent available to open the aircraft door. 30 minute connection time is insane in almost any major airport. Not judgin. Just sayin.🙄
Just FYI...no, the agent will not care that it is not your fault that you missed your connection. Your flight left on time and there are no seats available until tomorrow.