This is an interesting question, to be honest. And the answer is that it really depends. People can change and evolve, as hard as that can sound. People are capable of growth. Yes? So, you never know.
And different people process that change differently. A few of them might own up to the past, admit that they were wrong, and reveal that they're on the path to righting said opinions through their platform, position, or whatever else relevant. Some of them might simply prefer to forget that side of them, while still doing the right thing. People aren't created equal, and courage is a variable factor in these things. If I know that a person is making a conscious effort to avoid their past, by doing right by the present, then I think - and this is just me - that route is just as fine. I would commend them, nonetheless. It doesn't have to be a public declaration of 'I'm on a good, correct path now!'. It's more natural for people to change and not talk about it, than the other way around.
This is a much smaller analogy by comparison, but how often have we changed our preferences and not talked about it? It could be anything, from eating habits, to becoming a morning person after years of being nocturnal? You might argue that, "Hey, that's not the same thing." And I would agree. But people don't project changes, and if they're trying to change what's wrong, most of them, I would think would prefer to just turn over a new leaf without highlighting to the world what used to make them wrong. Isn't that still fine?
It's also possible that people train themselves to be consciously right, while not dislodging from their original perception of right and wrong. We live in a hyper-social world because of the internet, and anything can bite you hard enough to make your popularity crash and burn. Some people make the smart choice to just say, "Hey, we have to do this. We might lose subscribers otherwise." For example, I'm introverted by nature, I think. And I've made an effort to train myself to be more social, more the center of attention, depending on certain situations, so much so that people meeting me for the first time find it hard to believe that I'm not like that all the time. With the issues you've addressed, if they're doing what I describe as masking - that's certainly hypocritical, yes.
Otherwise, if it's like the first part of what I wrote - then no, it's not hypocritical. Like I mentioned, people are capable of change without addressing it out in the open.
