Some very good information here regarding Engine Stalls, thanks to the contributors.
Something else to consider from the FCOM DSC 30-30-10 p1/2
When an engine anti-ice valve is open, the N1 or EPR limit is automatically reduced and, if
necessary, the idle N1 or EPR is automatically increased for both engines in order to provide the
required pressure.
As I understand it, the second part of that description, an increase in EPR is an important part of preventing the stall.