That's a stupid highbrow attitude. I suppose the same concept applies to any form of information? If we don't understand the whole story, it's not worth knowing any part of it?
It's disinformation. It's like when the meteorologist shows a map of temperatures across the region, not mentioning it is the 'feels like' temperature, an arguably useless and misleading number made up of the actual temperature and the wind speed. Just tell me the temperature and wind speed - let me be the judge of what it 'feels like'. Maybe I wear a windbreaker.
For sub-freezing temperatures with strong wind there is most definitely a point in mentioning wind chill factor. It keeps inexperienced people (i.e. tourists) from flooding the ER with frostbites. Otherwise I agree "the temperature it feels like" is silly.
It looks like you have an incomplete understanding of the meaning of 'mislead'.