War Machine is a Marvel superhero so they AKA Disney probably own the trademark to that.
I don't mind Lacey Evans being Becky's first opponent at all. It's at least a fresh matchup. Everyone likes Becky, no one likes Lacey, boom that's wrestling. Though her gimmick is just... what? Do kids know what a "southern belle" is? Do adults even know? I guess they are trying to convey that she is prim and proper, which I think you can easily do without a strangely outdated gimmick. It reminds me of the time Heath Slater was very briefly "The One Man Southern Rock Band." What does that even MEAN?