I'm sure they're forced to do that and graded on how many upgrades they sell. Their bosses will even listen on calls and if they don't make all those pitches, they'll get written up or fired. Source: seen it first-person.
Yeah, I wasn't really upset with the guy for reading his script. I'm sure he was doing what he was trained to do. I figured that if I gave the little diatribe then I kind of figured that he wouldn't get in trouble for just moving on.