Lost Ark was recently released into the US market by Amazon / Smilegate and is getting some negative feedback due to the casino-like elements to the game. Some people just don't want a slot machine simulator, but if you're the publisher who wants to extract maximum revenue from players, then Skinner boxes are apparently the way to go. The player can buy their way past randomness by either purchasing material that increases their chances of winning, or gives them more chances to play. So despite complaints I doubt that mechanic will go anywhere.