ONE has a good and a bad model of operating. On one hand, they offer diversity with styles and keep fight cards exciting, switching between their version of MT and MMA, however, when it comes to a casual, that tends to get a bit confusing and you are not sure what you are watching, for what they are fighting, so on so forth. Interesting concept though.
They have one more advantage in ONE championship compared with UFC, Bellator and other organizations, there is no typical weight cutting and everyone fights at their real weight.
They are measuring only water in your body so you must be hydrated correctly, and not lose weight with dehydration like bodybuilders and other mma fighters that collapse sometimes.
Most of weight cutting is something like cheating anyway, we see some fighters gain so much weight after weight-ins and they look huge after that.
Their cutting policy combined with their gloves is something more organizations should implement. Why they don't is a mystery. You get 10kg differences between weigh-ins and actually fight weight in other organizations, it's just a stupid rule that needs to evolve in what ONE has, it's not '97 anymore.