The television network’s advertisement for its new medical drama grossly misrepresents what that program is like.
Conclusion
The ad they ran won't attract recurring viewers as well as the ad the producers favored would have.
Evidence
The ad they ran totally misrepresents what the show is like. People who tune in to the first episode with false expectations will be unlikely to watch subsequent episodes.
Evaluate
This argument has both Comparison issues and a Missing Link. We're given a conditional rule that says: tune in 1st ep w/ false expectations → ~likely keep watch
Was it established that people will be tuning into the 1st episode with false expectations?
No. The author is just assuming that because the ad grossly misrepresents the show, people will tune in with false expectations.
Additionally, say that we stipulate,
Would that prove that this ad was less effective at getting recurring viewers than would have been the other ad?
Not necessarily -- the author is Assuming a Difference. She's assuming that had they gone with the producers' ad, then viewers wouldn't be coming to the first episode with false expectations.
Goal
The missing link: or the missing part of the comparison: .