What you're describing already existed. It's the role of a researcher or fact checker. A sensitivity reader explicitly serves a different function. Not checking

What you're describing already existed. It's the role of a researcher or fact checker. A sensitivity reader explicitly serves a different function. Not checking for accuracy but perceived offensiveness. This is an ever expanding rubric and one that (for the 'sensitivity reader' like the bureaucrat), can only fail catastrophically in one direction. The incentive is not to ensure accuracy, it's to avoid controversy. The phrase 'bullshit tropes', so reminiscent of 'piece of shit people' is telling here.