Maybe someday Otto will become like Vegeta but I, for the time being, still see him as Dragon Ball Super Frieza. I feel he hasn't reformed enough yet to be modern Vegeta perhaps Android/Cell Saga Vegeta but not modern Vegeta. He needs his noble sacrifice moment plus a meaningful reconciliation with Peter before he can make the leap from villain turned somewhat reluctant anti-hero to fully realized anti-hero.
PS The Broly movie was great, IMO.