the mom’s feelings were hurt, for her daughter’s sake. I get that. We all want our children to be included, appreciated, and relevant. I would hope there was no malicious intentions on leaving out the photo.
good news is that people rarely look back at their yearbooks any more - it’ll be old news and forgotten i hope the rest of their lives. I didnt order yearbooks for my last two kids. they have all the photos they want and connections to people with social media.