No, when I first saw it on steam it was free and I downloaded it for free. I'm curious, what issues would it cause?
Viewing post in A Date with Death - Beyond the Bet DLC comments
if you bought the dlc first and didnt reinstall the game it wouldn't activate. I'm unsure as to if downloading the files from itch.io first would also cause issues - but either way you need to reinstall it again after purchasing the dlc. I'm unsure as to if the dlc has ever been free on steam - are you sure you didn't just buy the base game?