Yes. Specifically, the wine needs to be taken to the TRS desk (or is that ABF desk) landside so it can be sighted and the refund paperwork can be issued since you won't be able to take quantities of wine through international security. The thinking is after it is sighted you either dispose of the wine then and there or you pack it in your checked bag and then when you arrive at your destination hand it out as gifts or dispose of it in the biosecurity bin before clearing customs.
Whether it makes sense to go through all of that work would depend on the wine involved. To give you one example, right now you can buy a case of 12 bottles of
Penley Estate for $780 which nets you roughly 36,000 points (or about 2.1 cents per point). If you could get the TRS on that (which amounts to 23.59% of the price or $184), the wine would instead cost you $596 which works out to 1.65 cents per point.
-RooFlyer88