Nothing to be really skeptical about. Most likely they are using points from a PlatVIP owner, getting the room you want with 50% of the points, and one free upgrade.
Would be interesting to know what you got and paid for it. A 2BR Dlx inside 60-days after the first week of April would be about $400 through a PlatVIP member. It is only 56,000 points for a 2BR Dlx then. That is just straight cost though. Since they get "next available" upgrade free, you could get a 3BR Dlx, 2-4BR Pres for that price if inventory was available. If you only wanted/needed the 2BR Dlx and a 1BR Dlx was available, they would book the 1BR Dlx with the free upgrade to the 2BR Dlx. Those points would only cost ~$300.