I'm not disagreeing with any of that, but try to remember, 1) the Batmobile is a car 2) the actress/hostess wouldn't have done the video if she'd had any major qualms about being objectified like that.
Well, of course. The whole thing was obviously scripted, which is one of the reasons it's so bad. I'm not saying I think she was actually victimized, I'm saying I think it's unpleasant that they wrote it to make it seem like she was pressured into it against her will, as if they were catering to an audience that gets off on the idea of women being sexually dominated and humiliated. There are contexts where that kind of sexual fantasy can be explored validly, as long as it is only a consensual fantasy, but in the context of a feature that's supposed to be about Batmobiles, it feels inappropriate. It perpetuates the worst stereotypes about comics and their fans. And it feels completely out of place in a feature that's supposed to be celebrating the '66 Batmobile, an icon of the most clean-cut, wholesome, and polite incarnation of Batman that ever existed.
What would you be saying if the show was scripted to have the 89 Batmobile win and to have the man in the bikini washing the car?
She agreed to do the bit and for all we know it was her idea during the writing process of the video. It was maybe a bit gratuitous as was the reactions/actions of the two men during it but, eh. It's entertainment.