Lose money? They made their money. After the SRL event in December, I've not seen anything else coming out in 2017. D2 arrives towards the end of 2017 so this game has an expiration date, and it's September - December 2017. Unfortunately, while I think they do care (you'd have to think someone there wants to fix it), I don't think the powers that be are allowing resources to be spent to fix it.
What do you mean when you say that they aren't letting them use resources? There's a team for fixing network issues like this, and if it's a commonly known problem, then they should've fixed it by now. I know that no game is perfect but this game could be a great game if more issues were tended to. They literally have saved resources for different teams, they can't just say, "Hey, you can't use resources you have to fix anything." And if they couldn't use resources then why are there still patches being made on different issues that might not even be as known?