One factor that no one here has mentioned (and Pete Garrison mentions only in passing in that Flying article) is that - if there is torque roll imparted to the aircraft while on the ground, counter to the (clockwise) prop rotation, it will tend to push the left tire down harder and increase tire drag, adding to whatever left-yaw tendency exists from other sources (p-factor, etc).
After take-off, of course, that extra yaw impulse disappears.
And, yes, I'd say desktop sims tend to overcook the apparent effects (along with other things, such as X-winds). They only have one dimension in which to replicate and "teach" the complexities of flight control (no 3D environment, no kinesthetic "seat of the pants" motion), so they tend to overdo what the computer can show, in order to make the sim more challenging.