I took it as the government doesn’t know because they don’t care. If they actually cared, they’d know about it.
Then ended by saying they can either know, don’t know or don’t care. If they do know, it wouldn’t be hidden because it would be too important to varying agencies to do so. So there is no government conspiracy about hiding the existence of Bigfoot.
it doesn’t come across as contradictory at all. It seems fair to make the distinction of people within the government, vs departments of government vs the government as an entire entity.
Does John Doe with border patrol know due to his own encounter? Highly likely. Does John’s direct boss know? Probably. Does everyone within Congress know and actively choose to suppress the information to every single department unanimously with any dissenters at all? Not likely.