Obers are more robust and after their upgrade, they can handle any infantry. The supress infantry with Vet 4. What else do you want?
Going for Luftwaffe is giving too much redundancy.
To place more mines and damage tanks' engines? I can understand your preference, but there's not
zero reason to use Falls. You might still feel the actual practical implementation of the distinctions misses the mark, but I'd still say the concept exists. (ALSO, REDUCE HMG34'S VET REQUIREMENTS)