>the dress code for the daytime sessions is business casual. For the Awards Dinner on Tuesday evening, we're trying to step it up a bit and ask that you dress cocktail casual (Men: blazer/sport coat, stacks, suit, Women: short but somewhat formal dress and heels)
(emphasis in original)
Point being, the original quote is asking both men and women to dress up, but the article implies, with its clickbait headline, that it’s only asking women how to dress.
And, yes, I'm still very frustrated at how, in the mid-2010s, the outrage press strongly implied that the scientific consensus states that Alcoholics Anonymous has a 5% success rate. Actually, that was just the opinion of one medical doctor and that 5% figure does not come from a peer reviewed study; the mainstream consensus is that Alcoholics Anonymous works great for the 25% or so of alcoholics who actually go to meetings regularly.
I can see where this could be offensive as some women don't like short dresses, not everyone is comfortable showing off their legs either for one reason or another...
It should've just said Dress like you're going to the Oscar's or something -without giving direction as to what that means.
What part is editorialized?
You know perfectly well that is not what is being implied, nor is it what people take issue with.
Why isn't a dinner gown acceptable?
Why specifically is showing off legs and sexualizing the woman a requirement?
What if they are trans f->m or non-binary and they would rather where a pant suit, or a tuxedo?
Gowns can be just as business professional, so can pant suits.
Longer if always ok
The rest is also true, except the author apparently didn't know that the hanging part of a dress and a skirt aren't synonymous (I don't think so anyway). But that has no relevance to what makes it deserving of "rage", as you say, so what are you actually referring to?
Something can be literally true, but in the mean time out of context like this.
And since we all have that one friend or colleague that's always two levels below the stipulated dress code, I also understand the urge to explain it in male / female terms. It's just more specific. If I extend my sympathy to the non-binaries, I could understand that the dividors "Men:" and "Women:" could have been dropped in the explanation. But why is that such a big thing?
I'm not following your second paragraph - it sounds like you're simply saying that the female and male version of the dress code in question have no differences in terms of respect and reasonableness in-context, but surely that's the crux of the disagreement? The point is that I find "wear a short dress and heels" to be more disrespectful than "wear a blazer/slacks/suit". I am making no comment on how those two things are comparable in other contexts, e.g. whether or not they are members of the same dress code by definition. I can't follow how that relates to respect.