The problem with squeeze pages is the large number of them used by shady internet businesses. Many people regard a single page site as a sign of a scam. Scammers don't usually invest much in their scam sites, so single page sites fit their modus operandi perfectly.
Generally the only people that advocate the single page sites are the marketers that are trying to sell them...
The REAL problem is people who THINK (or, actually don't think) and consider everything sold online is a scam.
Regardless of whether you want to believe is or not, there is a value to information. It's called 'intellectual property' and it's protected under copyright laws of the US, Canada and most developed countries around the globe.
If you don't want the information being offered, don't sign up. It's that simple. But you don't have to automatically assume that a squeeze page represents a scam... because if you do, then I could draw some conclusions about people like you.