Actually the plan is to never tender from the Oasis, which is why they are building a pier at Labadee as well as the new facility at Falmouth, Jamaica. The ship is only going to places with a dock.
However, a exception may be upcoming with the 4-night cruise of Oasis in December. This cruise is the first revenue voyage and it goes only to Labadee. The pier might not be ready and thus they might have to tender ashore. Paul Motter is going on that cruise (I was but cancelled). I'm halfway hoping they have to tender just to hear his opinion of how it went.