As it can be seen from the image they are addressing Ontario players which means they already have players from there who are enjoying their time over there so it's all available in there information page.
And the fact that Roobet addresses the regulation compliance over there should give assurance to the community, we can say that it means that Roobet will follow any regulation that is needed. If some users didn't comfortable passing the KYC level 1 which is required on here, well, unfortunately, they simply shouldn't play on here or try to figure the other way around.