Can't really be that when:
Voice overs in strkes/gambit/crucible are different between fireteam members or when the time of day on a location is completely different(was playing with my son over the weekend and my game was during the night while his was during the day. We were next to each other both in game and physically.)
I haven't noticed that, but it could be happening.
What's more noticable for me is that the world doesn't completely update to reflect current events.
NPCs still reference Cayde as if he's alive while in patrol areas. Strikes still include him talking and being an active participant.
How will they be able to keep up with new content changing and evolving when the "current changes" haven't even been reflected throughout the game?