They got bigger problems to tackle as it is. Also the whole Gold RMT on BnS was never really bothered by them. I know so many people who sell gold and buy gold. They don't even hide it, they do it on a public discord group for years. And at this point and state of the game, it's not even going to be in their best intrest to start tackling 'cheaters'.
I even know cases of players sharing accounts with multiple players and then get 'scammazed', Even those accounts got their 'gear' restored for 80%. Normally they don't even do that, because of the ToS. This already says enough on how much they can lose on BnS.
Fixing the game bugs should be their priority and game issues.