The head official, the ref, definitely wanted to give Indy a second chance, so he corrupted the call. If was so obviously corrupt that the redfaced NFL had to publicly smite him.
Don't blame the referee; he was simply being a good company man, just wasn't thinking clearly. Nowhere near as clever as the infamous Jerry Markbreit, who carried out the corporate agenda in a more subtle manner, and therefore more insidious.
For years, the NFL has used replay, and bad on field calls before replay, to help get a great storyline team into their big end of season showcase game. Not to "fix" a game,nothing so crass.
Posters who state that Pittsburgh or Denver or etc would be great in the SB understand the game on the field, but simply are clueless re the PR game. With the Colts, with Manning (even people who don't know the game know his name, esp with those sappy commercials), with the exciting offense, with the Dungy tragedy.
Even a matron who writes a human interest column for the Hungry Horse Montana Weekly Advertiser could do a SB story with all these juicy storylines. Not so with Steelers, Broncos etc
The NFL has pulled this shit before. They executed a call-reversal to screw over a Dungy-coached Bucs team at century-turn, so as to escort the fab storyline team, the St L Rams, into the corporate biggie. (Remember all that heart-warming - ugh, puke, vomit - stuff about the rags to riches Kurt Warner?)
Brian Billick once accused the league of trying to fuck his Raven team over with bad calls (vs the "new" Browns) so as to have a neat ending to a public morality play, the new heroic franchise vs the nasty grinch Art Modell, who robbed noble Cleveland of their longtime property.
One really good thing abou this Polamalu incident: it may in the future encourage the NFL to issue a directive to all officials, that playoff games must be called strictly by the rules. Because it's far better for two non-glamorous, poor storyline teams to burst into the biggie than to make the corporation and its onfield employees look either like thieves who had a bet on the game, or as a group of complete incompetents.