I guess its possible to bet on sports via crypto  then take a hedge on the crypto vs fiat and lay off the bet in FIAT.   Thats introducing extra cost and hassle to the process is not really ideal.

Anything that adds certainty to crypto has a powerful creative effect for all the business that then can take place.  BTC being around 10 years even though its been up and down, accumulates into some certainty for business to expand.    Reading this thread seems like crypto lay betting could possibly be superior to betfair for some people, which is surprising how much its developed as an industry.   Makes me more bullish for crypto overall.