"it was not 100% authentic and honest. So what?"
i.e.: it was a lie. Which some people think isn't great behaviour. Clearly, you disagree but I think it's reasonably normal for people to have issues with lying
My point is that it's needlessly grumpy. It's fine if you want to be grumpy! But it's worth examining why this is a particular thing that triggers you. Far worse lies are told by politicians of all stripes every day, and we accept it as part of the system (particularly if it's a politician we voted for, not so much if it's one we voted against.) We should have a think about why we're getting tied up in knots over some shenanigans played by a couple of early 20-somethings almost two decades ago.
Who pretended that we were OK with politicians lying through every breath? Don't put words in people's mouths.