It does stretch credibility a tad. It makes sense the party would share tales of their exploits but the concept that every detail would be known to companions not there at the time seems a bit flawed if the only possible suggestion is the tadpole, which in itself as a story arc has plot holes and flaws at present. The companions might be ‘connected’ by the tadpoles but we certainly can’t see into every facet of eachother’s minds.
It does, though it's been a problem with every RPG, since they allowed us to essencially keep everyone - stuff like "I have been observing you for some time!" from a guy I added to my party for the first time since recruiting him.
As mentioned tadpole could be used to explain how others know of your actions, but it still makes it awkward when they say it, as if they have seen it with their own eyes. Ideally, I think it would be nice if the game recognised if they were or weren't present and played a different line "I heard what you did!".
