I don't get what the deal is. Aliens in Star Trek spoke English all the time. The Klingon language wasn't heard until TMP and wasn't fully developed until ST3. Even then, the aliens spoke English whenever it was convenient. Am I to assume that a universal translator was in play in every instance? The only time I can think of where the reality was "fudged" for the audience in terms of language was the court room scene in ST6 where it makes it clear that a translator is being used before breaking out the "English." Not to mention that most aliens in Star Wars spoke English as well. It's just one of those things we accept because it's too hard to deal with every new race speaking its own language and having to deal with those barriers.