The following creates four similar faces.
from cadquery import Sketch, Face
from cadquery.func import plane, face, rect
w = 1
l = 2
f1 = Face.makePlane(l, w)
f2 = plane(w, l)
f3 = Sketch().rect(w, l).val()
f4 = face(rect(w, l))
Only the Face makePlane method swaps the order of the width, length parameters.
It is also the only one of these that is undocumented.
I guess the parameter order is what you find unexpected. Agree it doesn't follow the more usual convention found here in Sketch, free function API but there is no bug AFAICT.
You might try moving to the `plane` function unless you require say the `dir` parameter of the Face method.