I don't see where you two are coming from,
I would be even more inclined to pull them off as early as possible and clear them direct the IAP for the approach if there was little to no traffic. As there is a much lower chance of a conflict arising.
If I were running CTR (on a normal afternoon / evening, when it's not too busy), and I see an RNAV capable a/c, even if they're quite far out, I'd just give them the approach clearance (as long as I can then separate any other A/C flying in or out) as it means the pilot doesn't fly as far and I have less work to do, Win Win Scenario?
Cheers!
Rahul