Brock only doing germans is a dumb complaint.
A) If he wanted to do other suplexes, most of them would be even more dangerous like an exploder or capture suplex
B) You know he can do more
C) It's his thing and it works for him. He isn't going to bust out some war crate of moves because he's a freak athlete demi-god. He's going to do what works for him. It's like when people say Big Show is better than Andre because he does more moves. A monster isn't supposed to do a shitload of moves. They're a monster and they don't need to bust out the hidden moves to beat someone. You're working to beat them They're not working to beat you.
And he's still not on God King Mils level