I was quite upset at first when they split our DP credits between the rooms, but it turned out fine. We just handed them both cards at TS meals and when at CS my husband ordered for himself and 2 kids and I did mine and the other 2kids. It actually made it quicker than trying to order all 6 meals at once. We just had to really watch the snack credits balance on the cards because we would order odd numbers on one card all the time.
Like I said though, my friends 2 rooms were all pooled together. I talked to 3 different CMs at Pop to see if they could pool mine like hers and they all said they could not since it was how it was entered at CRO. They did think it was unusual since all my paperwork showed one reservation confirmation number and the guests listed as 1-6 NOT 1-3 and 1-3.