Tabitha over at Simply Precocious wrote a beautiful empathetic piece on why the original article was and is hurtful. Please go and read it.
Now, I could write about why dismissing the idea of giftedness is harmful. And I have previously here.
And this isn't the first or the last ignorant piece written by well-meaning but poorly informed people who think they're doing everyone a favour by dissing on gifted people. You can read my previous responses here and here and here.
Instead I want to talk about why the idea that difference 'doesn't matter' is harmful. I see it all the time - "Everyone is different", "Let you're unique self shine!". They're lovely memes. Lots of fist-pumps and "Yeah! That's awesome!"
But it's a rare person that actually means it. Instead, a more honest meme might be:
"Be Different! But Don't Make Me Feel Uncomfortable."