That might be true. The only thing this is the second time that something like this has happened and the response I usually get is “You were hacked? We are resetting your password.”
I copied another ad that I saw that was running for 4 days with Charlie D’Amelio (A Tik Tok Celebrity). The only difference was that I used Billie Eilish (Another Celebrity).
Roblox doesn’t like when you have humans in ads/decals. I once uploaded the ring doorbell guy meme to Roblox as a decal, and my account received a warning.
I don’t see a problem with the images but while ads like that generally boost your player count, the user experiences from said ads will be very shallow and unimmersive, due to the ad not representing actual gameplay. Other than that, it should have been fine.