Some of the new IRC boats like the King 40 could probably benefit from the additional sail area of a blooper. Compare the King 40 to a Farr 40 Weight ~ 16k vs 11k, SA ~ 930 sq ft vs 1100 sq ft. Time will tell.
If you compare the King 40 to say a C&C 40 the numbers are not that different. The King is a heavy 40 footer that takes maximum advantage of waterline combined with a slippery hull form. Would a blooper work? Probably. Anyone have the polars?