Have these people used AdWords in the last 3 years?
Google is not neutral at all about what content you put up behind the click. If your page is content-free, their automated algorithms which calculate Quality Score, a key metric which determines how much you pay, are going to penalize you. If you use the landing page as a squeeze page (i.e. "sign up for our mailing list for when we release!", the most frequent suggestion) your QS will drop so low you will probably terminate your test quickly, after you start getting charged 10 to 100 times the going rate for clicks.
AdWords will also manually ban an account they catch doing this. It stands to reason for Google: they want people who click on ads to get what they expected, not hear "Psyche! That positioning was just a marketing test. Well, that will teach you to click on AdWords ads in the future, won't it?"