I have found it usually takes the in-experienced pilot too long to realise that their position is in conflict of where the drop zone is.
The Elwood DZ is on a busy VFR route within a few miles of one of the busiest GA airports, with multiple possible frequency combinations, nil transponder aircraft, complex airspace and yes, a high number of student pilots as well as non-locals who probably don't have a clue where Elwood is and already have their hands full.
Don't blame the pilots.