Ok, so, first off, I was kind of a dick. Sorry about that, I can be over zealous sometimes, especially in regards to game delisting and attacks on fan games etc. However, I gave ur comment an upvote, because I agree with you.
So, really I'm trying to find the line for you (and the other guy who reduced my opinion to that of a drunk due to my username, a common occurrence tbf lol)
If someone made a mod for a game, lets say, idk, Star Wars Battlefront (the original) would you not be just adding to another teams work? The person making the mod obviously didn't make Battle Front. So, I guess what I'm asking is how is that different than adding to a work that another indie team worked on?
I'm a huge supporter of mods, hacks, alterations, fan games etc. and I think people should be able to be compensated for that work. So if something was added to this game, what is the issue as long as they cite the og team (which they said they did, my bad if they didn't, going with the info I can see) and as long as they don't take credit for making the whole game?