If you had a choice of
a) 99% chance of evacuating with a couple of broken arms and legs (and no real fire), or:
b) 1% chance of 20-30 people burning to death because of a delayed evacuation
Most pilots would, and should, choose option (a) every time.
Yes, evacuations have their risks - but better to evacuate and then perhaps regret doing so, than regret not evacuating and have a bunch of corpses on your hands.
The management are setting a very dangerous precedent - not just legally against the pilot, but also safety wise for every other Captain in the company.
Seems the management pilots at Allegiant need to worry less about crucifying complex decisions in a very difficult, time pressured environment, and worry more about taking enough fuel for their own flight.