While I'm on the subject of missing battlefield cutscenes, I note that this one is both still unresolved and unlisted in any of the new bug-report forums.
I have painstakingly pinned down the exact actions to trigger this in another thread, specifically:
1. It only affects the first player to enter the battlefield
2. It can be worked around if, after all others have entered, the affected player leaves the battlefield and the area and comes back in (where possible)
And also I added other affected battlefields when I found them:
Full Moon Fountain--"Moon Reading"
Throne Room--"Where Two Paths Converge"
Stellar Fulcrum--"Return to Delkfutt's Tower"
This issue was already addressed (most effectively) where it affected the Rank 5 Final Mission in Throne Room. It would be really nice if you finally got around to fixing this bug that's been affecting new players for years