With the "Lactating seacow breasts" as you put it, I had no problem...
Just curious - how would you put it?
It's just they looked exactly like breasts (not like a cow's udder) and had milk trickling out of them, which is lactating. And most articles about the scene referred to it as a sea cow.
....as for the Leia scene I remember thinking man the haters are going to have a field day with this...by my ninth viewing I was happy with it. I thought it showed quite nicely Leia's latent connection with the force.
Interesting the haters thing occurred to you on first viewing.