Maybe you meant to use the word "maximize" instead..
I agree with your point, but even with the knowledge of the fact that gambling or betting with crypto does not necessarily increase profit, some persons might still argue that cryptocurrencies still have created an, maybe indirect means to save money in sports betting..
Lets take for example, As a Nigerian(example), the cost of depositing naira to a casino that have only USD, and maybe EURO listed as their fiat currency would involve alot.
First, you will have to find a way to convert the naira to dollar, this will cost you alot in fees, then deposit the dollar to the casino will also cost you another fee..
But with crypto., this thing are made easier and save us a ton of money, you could easily convert your naira to bitcoin at a very minimal cost through p2p trading, then deposit bitcoin to the casino for free, at no cost at all, aside small blockchain transaction fee.
The above I personally believe is one of the ways crypto has helped us to maximize profit in gambling, and betting.
Now back to our discussion, I understand your point as the advantage of using cryptocurrency for deposits and withdrawals over online casinos is quite numerous compared to the fiat systems that attract higher fees and delay transactions, this has been the positive impact of the covid-19 lock down people were made to understand and adopt online casinos with crypto payments since the lockdown enforcement involve social distance, this has been one of the major reason why online cryptocurrency casino have a surge in demand compared to physical traditional casinos.
But aside from the fees and faster transactions, Cryptocurrency casino does not give any other profits advantages such as in odds and reward payment when the bets are won, what ops were pointing to in his writing is that there cryptocurrency gaming give an extra edge over every other winning and that is why he classifies them in the category of profits making a channel.