Maybe that kind of games will attract more people to bet because that game is a new gambling game. People who hunger to search for innovations in gambling games will try to play that game, and maybe they will stay longer at that game, especially if their reason to play that gambling games is to make money. Maybe there will be many other new gambling games that will release, especially this game can be popular among the gamblers.
The bottleneck that I am seeing here is that, they are only accepting eth right now. So the owner, can't post their site in the gambling board. This thread is gaining interest more than the official thread from their staff - https://bitcointalksearch.org/topic/miabet-bet-on-marble-races-now-with-sponsored-tx-fees-5206396
The topic itself was created in Dec 2019. But look at how many users posted their comment here vs. their thread?
You would really expect that there would be lots of comments or response on here yet this had become a discussions and the way OP did make out some questions
then you would really see different opinions and views rather than on responding or posting up into their main thread.You are right that they are only accepting ETH at the moment.
It would be good that they would really be putting up Bitcoin option too but since this race is been ran with erc20 platform then you would really expect on where it do sticks.