I've found success as of late with being able to move the pin on UBER kind of how lyft has always done. Haven't tried in PHL but it was always an issue in SLC and PHX and I have been able to modify the pickup point. It used to be locked in. Terminal or bust. But surely there are many airports across the country that have businesses and residences where this has been a problem and I think UBER has finally caught on. Disclaimer. Not at brown yet but a regular commuter from many gateways.