It's like someone saying "hey this war with Iran might be based in lies, remember Iraq?" then someone saying "no its different this time" and eventually needing to backtrack.

Many try to be the voice of caution, while others are too trusting and then try to pretend they were always against <Obvious lie and trick>. Just like how getting scammed on a crypto rugpull is shameful and prevents people from speaking out, getting scammed by another obvious national security lie or walled garden lie makes folks feel like fools too.