No, it's not. At least not unless you're taking a very uncharitable interpretation of what it's saying and overlooking an obvious interpretation that's much more reasonable. It's saying the government shouldn't be presumed right just because it's the government. Governments are capable of being right, and they usually are right about a lot of things, but they need to be kept accountable in cases where they're not.

And people for the most part don't need to prove any justifications for their actions are valid, because most of their actions don't require justifications in the first place. Like, what's your justification for positing on Lemmy? Do you actually believe you need one?