RH, one can not compare to airplanes, for several reasons.
The "deep stall" risk can be critical - nonexistent problem on a hydrofoil.
The issue with missing leverage for a rudder to turn efficiently - nonexistent on a hydrofoil.
So at least two of the major issues with canard airplanes are not present on a hydrofoil.
For human powered aircraft, canards are used as they are lighter and more efficient, you dont waste lift on stability like on a normal stabilizer that has zero or negative lift.
When we use a canard on the water, the target is to get more reactivity and more rear foot pressure - especially for turning and waves, and this is where the canard could excel
But of course, only riding them for a longer time can tell whether you like it or not