American Eagle do earn TP. I've used them many times.
Original routing credit is for IRROPS during the journey.
Any re-routing prior to the journey due to a schedule change doesn't qualify for ORC in my experience.
A schedule change on AA though is a bit like a blank cheque and provided you research your options, you can pretty much achieve any reasonable reroute.
So, based on the limited info provided, if your original routing was SFO-ORD-JFK, that would have given you 80 TP.
Assuming one of those legs is subject to schedule/equipment change, you could ask for SFO-JFK as you suggest and that would give you 140TP, being >2000miles.
An even better option would be to combine a >2000 mile sector with a shorter sector, giving 180TP eg SFO-CLT/PHL/BOS-JFK.
What is your routing and potential change?