The way I see it these guys have bulk ordered from the Chinese factory and say they've made some super-duper changes yet the facts are;
1. this light is designed for under water. It requires a bigger heatsink for sustained usage in air or movement.
2. the bracket is designed for a fish tank, and they passed on the original bracket for use on a motorcycle. It is clearly going to fail but is a matter of time and frequency of the engine.
3. the lights they sell exhibit LED burn, indicating they are using the same internal electronics.
If you're happy to take their word for it then fine. I'll keep my scepticism until proved otherwise with proper evidence.