That said, definitely DLC could use a neater term. Having to abbreviate it is a problem in itself, and as it has been proved it’s actual meaning is not well represented.
"Games as service"
or
"How to retain customer engagement through three quarters"
related to this is how few people actually finish games, so really it's like a surcharge for the players who care enough to pay for more.
I'm going to disagree with that last bit on principle, because for me, if I'm buying DLC, it's to spend more time in a game I enjoyed. 90+ % of the time anyway. I own all the Solasta DLC, for example of that other ~10%, but I haven't finished the main game yet. As an aside, I own all the Witcher games, and all DLC, and I've never finished one of them, but CDPR was doing right by their customers, so I supported that. However, when I bought DLC for Dragon Age, I didn't buy it thinking "they're charging me for finishing their game", I bought it because I was enjoying the game, and wanted more content for it.
