Why present perfect continuous in this sentence?
Today, (Monday 1st July) at XXXXX we had a bit of a catch up on who we've been watching over the weekend at Glasto and listened to some jungle following what felt like hours of organ drones (or "Church music" as we've nicknamed it)
Why not had been watching as on Monday they (people working at XXXXX) were not in Glasto but back in their office.
Present perfect continuous could fit in the case of they would plan to return to Glasto to see more concert this year but I checked the date of the festival and it ended yesterday (30th June) so it won't be possible for them to return to Glasto for this year.
So why present perfect continuous? (can't find any good reason)