Going off of what Roger said in a past interview, Bob knew how to deal with contestants. If the contestant was "fun" he'd build on it and milk the situation, likely taking the long route to reveal a win. If the contestant was on the "dull" side, Bob would rush through it more. So I think a lot of his inconsistency with the reveals for the game had to do with that. You could also say Bob was inconsistent with reveals for many games - sometimes Squeeze Play got build-up (false-reveal-type), other times it was just a quick reveal. His inconsistency may also have had to do with timing for each show. Also said in an interview, and I think the example used also had to do with "fun" contestants or situations, Bob would milk them for all they were worth; contestants who were part of a performing group got their 2mins of fame and Bob knew how to make up that time later in the show. I'm not saying you're necessarily wrong, that maybe Bob just couldn't make up his mind on how to reveal, but these might be a couple reasons for his variation in revealing the game.