There is great value in analyzing propaganda if you know it's propaganda. The danger comes in the fact that the majority of people can't distinguish actual reporting from disinformation. That's why it gets down-ranked.
But since the best solution is impossible, at least right now, a half measure like this seems reasonable to offer some amount of protection.
Don't let the perfect be the enemy of the good. We should do what we can now, and keep pushing for better solutions. Holding out for perfection does nothing to help people now, or possibly ever, depending on your definition of "perfect".