There's virtually no chance of making that meal. The airport is 30-40 minutes away from WDW. It could take you 20-30 minutes to make your way through the airport and waiting time for a DME bus. Then there's no guarantee that BW would be the first DME stop.
That is all best-case scenario (no traffic, no delays by the plane or at the airport, no excessive DME delays).
If CG is a place you really want to eat, make the ADR for a different night. There's virtually no chance you'll make it on arrival night (and yo'd be charged a no-show fee).