No. But the distinction been made is totally ridiculous. "Expansions" are DLC. Expansions more or less are a marketing term to describe "meaty" DLC: "expanding" the game. But any type of DLC= more content by default. So the point is moot.
What's interesting about all of this is people arguing about semantics on the term DLC and taking sides.
There is only one side. Expansions are DLC period. Whether you're ok with them charging for DLC that CDPR calls "Expansions" got nothing to do with DLC - the term itself.
Lets take TLOU: Left Behind. It's DLC. Story DLC. Give it to a publisher like Activision and watch it be called an "Expansion".
Cept of course Left Behind doesn't come close to 30 hours. It's like 2-4 hours at most. Plus Naughty Dog has some of the worst dlc practices around.