Since tis Halloween, and this zombie is walkin'..I'll add a bit more to the corpse...
For those of you who weren't around then, and probably don't realize it, before the adoption of the 9mm as the US service cartridge, there was virtually ZERO market interest for a DA 9mm revolver in the US.
Small numbers of DA 9mm revolvers did hit the market, from time to time, either special orders from a distributor, or guns made for sale overseas, generally.
US shooters simply weren't interested in a DA 9mm then, and overall, not many are now. People wedded to the 9mm Luger as a defensive round generally don't care to be restricted by the limitations of the revolver. They may get one as a range toy, or curiosity, but generally stick to the auto loader as their service/CCW piece.
Revolver shooters generally look at the 9mm Luger, and say.."why?"...
First, because there is nothing the 9mm can do in a revolver that isn't already done and well surpassed, by rounds like the .357Mag.
And second because of the added need for clips in DA guns. Lots of people, who want a revolver to shoot 9mm Luger, choose the Ruger SA, and curiously enough, the Ruger convertible Blackhawk is, as far as I know, the only "9mm" revolver that has been in continuous production over the last few decades.
Real or imagined advantages and disadvantages aside, the market shows what US buyers want, and in general a DA 9mm revolver isn't high on that list, and never has been.