Correct, bass may not be native. But hey, who said that the lake over there is not warm enough? Do bass really need to have warm water to eat, grow, and survive? I don't think so...if the bass is being bred over generations for genetic to grow over to beat the record. Then it will not be listed as a record at all. I'm guessing you clearly don't know what the IGFA do with the fish first before deciding if its a record or not. They don't just look at the fish and look to see if its legally caught. They also do a DNA testing of the fish to see if its a true LMB or a hybrid of others.
A fish does not have to be native to set a record, just got to be legally hooked and a true species and not a hybrid. If it has to be native, tons of fish out there are not even getting to be set as world record or state records due to transportation to a body of water that they never coexisted with. And one more thing, any fish that doesn't surpass 25lbs then it must be heavier than the previous record by 2oz. And this fish clearly doesn't pass the fish by 2oz, so currently...it is not quite set as a new world record by the IGFA list.