Yes, but the post wasn't specific about which particular change of formula they were made about.
The filling for Oreos used to just be lard that was folded together with granulated cane sugar. That's all that the white stuff was (according to a good friend of mine who made Oreos way back then, and still makes them today). It definitely was a different experience back then.
So was IBM's now-completely-forgotten WebExplorer browser, especially when hacked to have 8 network threads downloading at once instead of 4. :)
And that's OK. Modern Oreos are still tasty; they're just not quite the same. And the modern web experience still works, even though it is very different compared to what it was back then.