I must confess that my post was a bit
tongue-n-cheek. Actually, I think we should be open minded about what factors were influential in the design of the trumps. It is even possible that L'Etoile may have been inspired by the association of Sirius with the flooding of the Nile in (heaven forbid!) Egypt, which easily could have passed from Egypt to southern Europe via Alexandria.
It is probably best not to adopt the canned Rider-Waite divinatory meanings, such as those given in
Pictorial Key, especially for the minors, since these conform to certain of Waite's particular agendas. However, wholesale rejection of all philosophical and esoteric significance in the trumps would need to be based on the assumption that we know everything there is to know about how these cards came to be, which obviously we don't.