You're right, well I've always believed one thing, that in sports betting one as a person has the option to win more as long as one knows enough, in slots the thinking is different, because it's only up to luck, and the amount to lose varies, that depends on how much we want to risk, that's why we shouldn't lose control of the money, always bet the money that we are willing to lose.
You explained the advantage of sports betting over slot games however there’s a pros too for playing slot games which you can’t achieved on sports betting. That is the chance to win max win by betting same amount. This is the perks on playing a luck based game like slot which you have a chance to win random multipliers per spin.
In conclusion, it’s highly depends on what you want to achieve on choosing what’s the best game that will work for your gambling style.