But did they distribute it to the press, or did the press lift it from the social accounts?
And if they did distribute it to press directly, it would have been exactly as it was posted - here's a nice family pic for Mother's Day. Nothing wrong with a pic like that being touched up at all. EVERYONE - individuals and companies and organizations - at some point, if not every single time, is going to do the exact same thing. The company I work for relies heavily on images, and a standard step in the process is "here are the proofs, now pick the ones that we'll use on socials and in our media outreach and then we'll retouch those to prepare for distribution."
The sad part of all this, or should I say another sad part, is that poor Kate has a hobby that she clearly enjoys and now the world is picking apart her photoshop skills and if it was me, I'd never share another pic of my kids and family again. It's too bad as I for one found it refreshing and enjoyable to see her casual family pics instead of stuffy professional portraits all the time.