Analogies are rarely perfect, that's why they are analogies. The OSI model isn't intended to be perfect and yeah there are a lot of details that leak between la

Analogies are rarely perfect, that's why they are analogies. The OSI model isn't intended to be perfect and yeah there are a lot of details that leak between layers, but is also expected, any non-trivial abstraction is always going to be leaky. That doesn't mean it useless or absent of value in discussion at appropriate levels.