DLC doesn't always refer to selling you the game's ending or patching games. Nintendo for example released extra characters for super smash bros, some DLC's include the soundtrack and other fun content like extra levels, new missions. I think it's cool depending on what it is. A game company should not be trying to sell me endings, loot boxes, mystery items (those are 100% always scams) but it's not fair to say all DLC content is a scam.