Prevailing lack of inertia in the flight model, opinions?

[Hugothester]

@Summer1Man

Edit; another really significant possibility to observe this behaviour is during landing and at the moment of touch down

Check this landing of mine at minute 1:51:35

I am using full rudder, but the inertia of such a big plane leads me off the runway. Depends on the plane though, some suffer extreme inertia while others do not experience inertia at all.