I chalked up the difference in felt recoil between blowback, tilting barrel, and rotating barrel pistols as a matter of energy distribution.
We talk about using recoil, or gas to operate the action. People tend to think this energy being used is used UP, doing its work. It isn't. Nothing is used up, its only transferred. The difference in felt recoil is due to the difference in TIME transferring the force to your hand.
Take three guns, give them identical weight, and identical ammo. Make one gas operated, one recoil operated and one standing breech manually operated. Input energy (cartridge firing) is the same for all, so recoil energy is the same for all. But the FEEL of the recoil in your hands will be different, because the rate it gets to you is different in each design.
We have wandered about a bit, discussed performance of different rounds in snub nose barrels, heard how the 9mm (certain loads) is plenty good enough, how the .357 is too much, how the average shooter will do better with the 9mm in a snubnose than a .357, and I'm not arguing that.
My point is this, since the guns are approximately the same size why limit your options to the 9mm round? You may not want, or need all the power the .357 can deliver, that's fine. You don't have to use it. In terms of bullet weight and velocity the .357 can do more than the 9mm. Which ALSO means you can load the .357 to do exactly what the 9mm does. Same size & weight bullet, at the same speed. Unused capability of full house .357 isn't "wasted", its just unused. If you have a .357 and shoot 9mm level loads, because its all you want or need, fine. If things change and you want/need the full power of the .357, its there, with a change of ammo. With a 9mm, its not.
So, since both can deliver the same thing coming out of the barrel, what is the advantage to the 9mm, if any? Moon clips over a speedloader? Possibly, but is the very small time difference in reloading something that is actually significant "for most people"?? I don't think so.
I don't have a DA 9mm revolver, but I do have a DA .45 that uses clips. However, it is a top break, which adds a different factor to the mix.
Clips have their down sides too. A bent clip can tie up your gun during a reload. There's no free lunch.