i would agree, supervisa in my opinion is easier to get than a trv because some of the burden shifts to the child in Canada as they must show they meet minimum income requirements. On top of that up front medical insurance is mandatory. A trv visit is relatively shorter term so they can expect much stronger ties, for a supervisa intital entry can be for two years, how strong ties can they expect when at the same time offer two years entry? Therefore if supervisa gets rejected its likely trv will be too, unless ofcourse supervisa is rejected based on non compliance like medical, insurance, income requirement.