Yes, it may make it harder for an amateur seeking to upload something they filmed themselves, and who are not looking to build a brand or collect a payment for it. Not sure how many of those there are. But as soon as you're looking to do one of those things, there are existing allegories you can look to to figure out how it might be enabled.
Every proactive approach has this downside. That's why we should focus more on making it easy for victims to report a video and have it and variations of it removed from all sites nearly immediately, as well as making sure laws are on the books making it easy to prosecute offenders.
We have repeatedly seen that, while deplatforming does drive content creators to move to other platforms, these platforms will not have the same reach as the mainstream ones. I.e. it’s not a perfect remedy but it’s quite effective.