because it's very rare to shoot it like that and probably most ref's never had to rule on such shot so if it was me, before shooting, I would make sure that the ref knows the rule
As far as I know, most refs are trained such that they can’t explain a rule or tell you what the outcome is before the shot. So you can’t ask “great, you’ve said it’s frozen. So that means I can shoot straight into them with a normal stoke?” Plus a properly trained ref would be insulted I think if you were making sure they knew the rule.