Internally people probably talked about how there were huge issues. Others probably said those issues are over stated and it’s no big deal. They decided to release it and the press says there are issues. Then, the company decides there are issues. That simple.
I have as well. I won’t pretend I’m always right - I’ve thought some ideas that worked out incredibly were horrible. Also had the situation you describe happen. It’s okay when you’re working with reasonable people. Show them the slide deck, the email, the analysis, whatever… “Look you didn’t approve this”. "Here is an alternative ". That can work.
Just telling folks “I told you so” isn’t usually a great form of communication.