I wouldn't think so, not if they're saying a percentage of all downloads come from search, as opposed to a percentage of all searches lead to a download.
Whenever I use the App store, I'm on a mission. But it's also a mission to get free stuff, so maybe I'm not even part of the equation.
I don't think I've casually browsed around the app store since I got my first iPhone (first smartphone), around 2009 or 10.