It is a little cargo cultish. The architecture looks good, though, and that's what counts, and why it continues to be influential. I'm rather more annoyed with idiotic signs on buildings which say "PVBLIC BVILDING" or "COVRT HOVSE". Just because Latin does not need to distinguish between "u" and "v" in writing (they're unambiguous in context as either a vowel or a consonant), does not justify torturing English.
Apparently U and J came into English in the sixteenth century as undifferentiated alternatives, and were split into separate letters about 1700. It was very surprising to me to learn that English picked up three new letters only three hundred years ago. Note that "w" is pronounced "double U" rather than "double V", which seems to not be an accident.
I'm no expert on the antiquities of English, but they were interchangable in English in Shakespeare's time. Here are some asciified lines from Macbeth:
I goe, and it is done: the Bell inuites me.
Heare it not, Duncan, for it is a Knell,
That summons thee to Heauen, or to Hell.