Its just how photography copyright law works. The person who presses the button owns the photo. I was a wedding photog or a while. I wouldn’t stop the couples sharing my photos on social media, but they wouldn’t be allowed to sell the photos for use in marketing or anything. Nit that ot ever came up.

If a couple asked me not to use their photos for advertising then I would have taken them down, not because I was legally obliged to, but because I’m not a horrible person.

When I was getting started I charged less, because I didn’t have examples of my work at weddings. But I made it very clear to the couple that I would be using the photos for advertising o get my business off the ground, so they knew their pics would be all over my website, etc.