This makes me think of George Carlin's segment on euphemisms.
https://www.youtube.com/watch?v=qvISFZ7bQcE
What's really sad is that show was from 25 years ago and it sounds like it was from yesterday. I think it's stupid. Every time something becomes offensive, a new phrase has to be created. What people don't realize is that this whole political correctness bullshit has two distinct flaws. First, words by themselves aren't bad. It's the intent behind the words that make them good or bad. Being mentally retarded can be an insult or a genuine classification. By giving into the insult, you're effectively changing the definition of an otherwise harmless word. Secondly, by changing the term to something softer, you're removing the direct, emotional impact of the word and effectively hiding the truth behind the word. As we have seen in the past, does some who suffers from post traumatic stress disorder really sound as bad as someone who was shell shocked? They're the same thing but I bet anyone would pay more attention to the more direct words "shell shocked".
The same can be said about "mentally retarded" vs "intellectually disabled". When I think of someone who's mentally retarded, I think of someone who has a genuine problem and is in need of assistance. When I think of someone who's intellectually disabled, I think people who enjoy watching Michael Bay movies and the Jerry Springer Show. This is because being intellectually disabled is such a non offensive, non descriptive term to the point where it could mean anything and the impact that the word retarded has just isn't there.