I mentioned this previously. They probably feel they don't need to as in most countries this would be a red card, for some reason it just seems to be viewed as acceptable in England (and possibly Scotland).The LOTG ought to have clarification or a revision to indicate a dismissal going forward (to seemingly lineate with other Countries)
Perhaps just, 'the R should consider SFP for 'reckless SPA' when not making an attempt to play the ball