This basically amounts to arguing with your DM as to when they decide to give advantage or not.
LOL, It literally said "you talk to them" so there should be some type of bonus for actually speaking their language. There are plenty of bugs in this game. Like being surprised by one of the two above when I attacked first. The Elixir of the Colossus grants a bonus for Strength checks. You have a chance to "add" the bonus to your roll even if you haven't taken it yet. Why not have the Animal Speaking potion do the same for consistency?
