Because if it wasn’t important we would scrap the title structure entirely. The UFC could assign new title fights in every division on every event if it wasn’t.
For the record, I don’t consider either title reign to be fraudulent. But if we’re going to ask which one is the most legitimate (or least fraudulent) then we have to consider that only one of them actually beat the lineal champ. You’re arguing that Jones’ win was more impressive, but that’s a different conversation entirely. I may even be inclined to agree with you on that point. I think it’s too close to call but I can see the argument either way.
Really having trouble following you, so if a champion retires with the belt it is all over? Since no one can ever beat that champ for the real belt it is gone forever, no one can ever be champ again?
I am not arguing Jones's win was more impressive at all. If you actually can't figure out the answer to such a stupid question, the answer is neither. There is nothing to even consider. Both wins made them undisputed champions of those divisions, there is nothing that makes one any more legitimate than the other.
Although it was pretty savage that GSP didn't even want the stupid belt, he just wanted to take it from Bisping