Of course another consideration is that
L=1/2. ρ.V^2 .S.Cl
is an oversimplification/half truth/something/certainly not worth too many significant figures.
Cl varies with Reynolds number ie with rho, V and chord (a big compnent of S) and that variation is different for different airfoils.
Now if the reduction in stall speed is achieved with wing extension then we have a change in aspect ratio; whole new sets of things to play with.