Not really the point of the conversation.
In a nutshell, does Saban get players because they are highly rated or is it more true that they are highly rated because Saban and other top programs pursue them? Which is more true: The recruiting sites would be "as accurate" if they didn't know who made a recruit a priority until after they ranked them or would Saban stop getting top talent if 247 stopped giving high rankings to his recruits?
BOT and others have the cart before the horse and place faith in what amounts to a marketing gimmick. The recruiting sites do not give 4/5* to all of the nation's best players. They INTENTIONALLY don't even try. They set purely arbitrary limits on how many "blue chips" they name. They are selling a product to college football fans who are starving for affirmation of their favorite team.
Here's an example. You have 10,000 ball bearings on a table. To make your product work, you have to divide them using only your senses and input from line workers about the finish, weight, diameter, roundness, etc. You are tasked with dividing them into 5*, 4*, 3*, and unacceptable. If it were a real mfg task then you would be judged by how truly accurate your evaluation was. However if you arbitrarily choose to ONLY give 5* to 30 bearings and 4* to a couple hundred... you can give the illusion of expertise that you really don't have. It is much easier to identify 230 4/5* quality bearings than the 500+ that are actually in the batch.
The recruiting sites are fairly accurate with those they rate highly though not as much as many seem to think based on the draft or team performance. But too many assume gloom and doom over these ratings and rankings. Every year the recruiting sites will miss more actual 4/5* talents than they give that status to.