No, I didn't miss the point. It's just a poorly constructed editorial. His point is that big, dumb movies are being spoonfed to audiences that are being groomed to enjoy big, dumb movies.
The problem is that is a stupid argument (to an extent, because audiences always love spectacles over substance).
Again, films with built-in fanbases do well! This not a shocker! Also, if you throw enough marketing at a tentpole flick, your first weekend will be frontloaded - as is the case with Transformers, Wolverine, etc.
Adjusted for inflation, none of the summer blockbusters make a dent in the charts. Even without inflation adjustment, they're just frontloaded tentpole numbers.
Funny People sucked. Public Enemies, from most accounts, was mediocre. Their box office haul wasn't ruined because they were too intellectual and artistic, but because they were not very good.
All original IPs have an upwards battle, especially when they don't have tentpole marketing bucks behind them.