I don't think the reviewer understands the purpose of shooting in raw format. It's not to get more sharpness or detail, it's to have more data giving better editing control overall to do things like lift shadows, dial back highlights, correct white balance, and choose your level of noise reduction or sharpening in ways you can't with JPEGs. A 12 megapixel ProRAW from an iPhone 12 or 13 will look similar in terms of details as a regular JPEG/HEIC, you simply have more editing control if you import it into apps like Lightroom.