Because he's essentially saying "yes the UA's aren't connected to the Barnacles" which means the only logical reasoning we had in the first place for looking at the Pleiades for Barnacles was wrong. Which means that either there are clues we missed (in which case I would be happy and would very much like to search for them) or we were expected to blunder along on some vague reasoning with pretty much no in game lore to back anything up. In which case it is the laziest of game developments and I can't get behind it in any way. I can't feel connected to a hunt for something when the best hints we have got are from a game developer on the forums going "whoops looks like i made this too hard better drop them some hints" instead of taking the time to write a GalNet post and broadcast those hints in a way that is friendly to in game lore and positive for those of us who like some immersion. GalNet is literally there for these kinds of things and it's just been ignored and I find that really illogical.squiggsy! Why are you upset?
The Pleiades Nebula is still the place to look.