I think Cmdrs PanPiper & Paraszt are working on the assumption that the Horizons release trailer is all set in a single system/region of space. There is no evidence for that assumption, but none against it. There are, as far as I can see, absolutely no positional identification clues in the 2 second clip of the barnacles. It may be a reasonable assumption that FD put that clip in the sequence for us to go out & find, & therefore it is probably in the same or nearby position as the preceding clips so that we have some idea where to look. I think it would be absolutely unreasonable of FD if they had just pasted in the barnacle clip from a totally different & unrelated spatial location; they may not be very communicative with clues, & there may be some programming bugs that could mislead us, but I think they are totally straight with us wrt the storyline... So I suspect the barnacles
may not be on the same planet as that surface port, but in that case they are on a different moon in the same system or a very close system.
Happy New Year to everyone at Frontier, & mine's a Lavian Brandy!