Surprised you went there. When I tried 14-28t with a Chorus crank, the 53/39 chainring difference is so wide, I found it easier to use a 25t big rear cog. That way, all of the usual gear combinations work (except, of course, big/big and small/small). With a 28t, I either put a lot of RD strain when on big chainring combinations, or I lose some combinations in the higher gears on the small chainring (due to chain length). These are the constraints of using the short cage.

Assume you can be less careful with this combination with the chainrings closer together. Still, that seems beyond the limit of NR (without adding a Soma long cage).