The presence of CFD in a model isn’t really the issue (aircraft that don’t have it still respond to the simulated movement of air. They just do so via different parameters).
Plenty of aircraft that don’t have it will experience turbulence of the type that is presently modelled in the SIM. If I fly the Kodiak through the mountains on a hot windy gusty day I’ll find all the turbulence I could wish for.
But the source of that lumpy air is different. It’s about what may cause the air to get lumpy and the fact that CB doesn’t.
That’s not to say that different aircraft models won’t respond differently. They clearly do. But it’s not the primary issue. If anything the C172 G1000 will yaw around like a mad thing in rough air because it’s had its cross sectional drag co-efficient (CX) set to over 4 which, the general consensus believes, is an order of magnitude too high!