“If a striptease during the Super Bowl in front of 90 million people – including millions of children – doesn’t fit the parameters of broadcast indecency, then what does?” [Tim] Winter [of the watchdog organization Parents Television Council] said.
To answer his question, how about cameras leering over the half-dressed cheerleaders? Or what about beer commercials where a lady gets set on fire by a horse’s fart (to comic effect, she doesn’t get literally burned)?

Or how about all the commercials for “male enhancements” which used metaphors like a guy throwing a football through a tire? Why are ads for “getting it up” and “keeping it up” considered perfectly appropriate for any children than might be watching?

Why is a 9/16th second shot (which no one saw until later, after they paused the show with TIVO) worse than sexist beer commercials?

Right, because Anhesier-Busch and the drug (I mean “pharmaceutical”) companies spend tens-of-millions on commercials during football games.
Janet Jackson didn’t spend millions of dollars purchasing commercial time, so let’s call her act “indecent” and “inappropriate for children”.