Fair enough, after checking I realise it has always been like this. For some reason I thought translocators could only move the block on top, so they'd ignore the other sides... Anyway, what would be great would be if engines etc. ignored carriages whose facing sides were closed, or, even better, if the sides on the engine/translocator itself could be toggled (as this would also allow for template carriages).
An another note, do you ever intend to make it so that translocators display their label visually on the block itself? (would be very helpful though not sure how it would work on ones with multiple colours...)