And I understand that CG takes a lot of hard work and effort.

It just looked bad.

As with the rhinos, I'm surprised that at some point someone in production didn't see the final result and think: "Maybe let's try Plan B. Cause this shit does not look good."

Unless, I guess, they were like "We paid millions for this wack ass 90s video game cut-scene looking fight scene. It's staying in the movie."