Besides, do you think gambler don't care which sport it is. I have seen gambler who don't have any fucking idea about cricket but he used to bet on cricket.
Yes, there are gamblers who bet on sports that they didn't have any knowledge of but are still, pushing their bet. I admit I'm one of those especially when I like to make a parlay betting. Mostly, placing a bet in basketball is my preference but sometimes I also consider placing a bet on Football/Soccer. I have totally zero knowledge about those teams here.
My reason is simple, I just want to bet on it. The same goes for other sports.
Should not be a big deal as long as we know what we are doing.