Futo,
Would it really be brutal? How much of a difference would there be between the .32acp seecamp and the .380? Not too much from what I hear, though the .380 is a heavier pistol.
Of course, it would have to run heavier springs but I think it should still be manageable. The Kel-Tec design sops up recoil better than the blow-back seecamp.
I've shot a .380 Grendel which killed my hand yet the equivalent sized Kel-Tec 9mm
didn't. There are other factors beside weight which tend to make recoil and muzzle flip manageable. Though you've got a point, it does get more brutal when you go really light.