u/TheDuckClock

From NeurodivergentRebel's Instagram.
https://www.instagram.com/p/DYAWhGTCOWJ/

I think this is due to the limitation of CGI at the time, since they appear to impose the zords and Ooze's monsters on real world footage of Sydney.

Still, in the film they look no bigger than about 8 stories. Whereas in the show (And I'm using American footage to compare here), they're easily over 20 stories tall.