If you think about it, the person will be having those transits regardless of whether a horary question is asked or not, and certain transits of course will 'show up' in a chart because transits cause certain foci to come into play...so, when Venus is transiting over someone's ascendant they are more likely to be thinking about love, so the chances of having Venus on the ascendant of a horary chart is reasonably higher. However, I would leave it at that. Lilly often did people's nativities before or after a horary, but it wasn't linked directly to a question, more as a general overview. I wouldn't get too hung up on it.
AG