OP: Sometimes it's not that they don't win anything. In fact, "not winning" can actually attract something very important for the casino: player traffic especially from high rollers.
That's right, the OP fails to realise that, in business, giving something for free is a marketing strategy that usually boosts revenue.
Then... it's not that they don't make money; they usually do so through their otherl games ( live games, slots, sports betting, etc. ) and that's perfectly fine.
Correct as well,tTheyve thought this through very carefully. Few people bet on a site exclusively on 0% HE games. Traffic increases, and most players, as well as playing the 0% HE games, also play the other games which are the ones that generate the casinos current profit and more than make up for the rest.
I think you're making a bit too much of your idea: mode K-drama. 

