I have to admit that to avoid unnecessary calls when busy I've started to just say "Cleared ILS Approach 24" [with the closing turn] to foreign crews - I still do that MATS 1 thing to the Brits (MATS 1 1-1-1.2 applies). And, no, it has never caused any confusion!
However, almost all aircraft under radar vectors at our unit will be at the platform level for the approach before commencing their closing turn in any case, so the pre-emptive descent worry doesn't apply.