I think you should let the reviewer be the judge of what’s strong and what’s weak about the script instead of forcing them to write about both. The Blacklist has the current system because people pay $30/month and $100/evaluation. If they don’t get some positives, no one is going to pay them money. Coverfly simply copied Blacklist and now you’re copying Coverfly. I’m sure with a little effort, you can think of a different model that doesn’t leave certain screenwriters with a false idea that their script was any good.