A forgotten point is the safety videos are not aimed at the frequent flyer, most whom ignore the video. And while UA pleas for all to watch, the principal target audience is the infrequent flyer and an video needs some gimmick to engage those flyers. A "just the facts, ma'am" video will be considered boring and not watched, We can debate if the moving blue ball is an effective gimmick for the infrequent flyer versus prior versions, but this is why airlines try to make these videos engaging / entertaining
The effectiveness of the video is not measured by a vote of FT.