Count me as someone who strongly disliked the last part of that thirteenth-season title track, where they extended it at the top to paper over poor execution of the visuals, and extended it again before Bel Geddes was shown.
I wonder if this cheapness/laziness was just the point the show had sunk to by then, or if part of this was mainly because Lesley Anne Down's contract put her in the intro, but they knew she wasn't staying, so didn't see a point in going to the the trouble of altering the theme?..Either way, it wasn't a good look/visual, whatever, and for whatever reason, they didn't bother reverting back to the prior version once she was gone..Now, this could be that she was still paid for the remaining episodes of the season, even though she didn't appear..? Meaning, she was still under contract, but they decided not to utilize her any further, but her name still had to appear in the credits? However, though, if she in fact contracted for the remainder of the season, they should have gone to the trouble of extending the theme song properly once she joined the cast.
Of course, look how Falcon Crest just started chopping their intro up in seasons 8 and especially 9, as actors left. So, Dallas wasn't the only one getting lazy, although I guess it would have been lazier for Falcon Crest to just leave all the names of the actors in the intro, such as Dallas did for season 14..no matter who was still there or not.