Engine torque and your own prop wash and stalls are completely modeled.
What is being asked for is the effect of other peoples prop wake effecting your plane.
HiTech
I understand, and I understand that it may be impossible to model prop wash due to technical limitations, however it bothers me when people are against something due to a marginal increase in difficulty so I made a tongue in cheek comment about things that make take off "difficult" that are already modeled.
Of course, sarcasm never carries well through text.