Basically, being an affiliate means having a passive income, because once you've got the referrals directed to a platform and they started using that platform under you, what you earn after that is all passive income since you won't be doing anything at all, but what you are suggesting is not that simple and requires a lot of constant work, if you are partnering up with someone for running a platform, you will need to bring traffic constantly and one-time isn't enough.
A dedicated affiliate marketer never send one time traffic. Bringing traffic is a continuous process and only an affiliate marketing person knows it better. Yes, as an affiliate, you don't need to take other problems of running a platform on your shoulder.
I understand but I believe there is a difference between an affiliate marketer who markets products for a commission and an affiliate marketer who markets a gambling or betting platform to earn a commission for every wager made by their referrals. An affiliate marketer in general gets paid once if they are promoting a certain product only when a person uses their link to purchase that product, but an affiliate who refers someone to a casino earns commissions for every single wager their referrals make on the platform.
That is the reason why I said that an affiliate of a casino platform generally would prefer only doing that since they will be earning a passive income after redirecting the traffic of their referrals' network towards a platform since they will be earning commissions as long as their referrals are active on the platform.