I think this is because you made some questionable choices and were raked across the coals for them. You want her treated the same way you were because her powers caused this, and now we're all rallying to keep the public from knowing about it. You see it as the same thing. Maybe you're right. You circled your wagons the way we are now, keeping it tightly contained.
Personally, I don't care what you did. If I had been in the know, I might have made the same call you did. Why trouble people who are already panicked that their ship may run out of oxygen with something even bigger? That they had no hope against?
But we're not on that ship anymore, and this is about all of us, not just Wanda.