Unironically they’re basically already doing that by having ads longer than the skip button, as you trade off ignoring the ad for the full duration and paying attention when you’re intended video starts for paying attention waiting for the “Skip Ad” button.
Even just that short 5 seconds is enough for an ad to get embedded in your brain with enough repeated exposure.
I’m sure people said similar to the French Resistance regarding the Nazis/Vichy government…