There's a massive difference between women being the recipients of a uterus transplant and "experimental" surgery to implant a uterus into a man.
True, though all surgery is experimental til it's done enough times.
Because women without a uterus, due to a developmental issue or losing their own through cancer or similar, are women. With a female body that has all the resources and ability to maintain a pregnancy, apart from a uterus.
Indeed, I can't see transplanting into a man succeeding anytime soon, and I can't see it ever being straightforward or reliable.
Blimey CharlieParley, I had no idea about horse surrogacy and its effects. Every day's a schoolday on MunsNet! Though that's foetuses not wombs.