People use the dollar in business becaUse its a stable currency.

If the US does something to destabilize the dollar, will economists be running around saying “the dollar was never intended to be used for that purpose!”? No.

It doesn’t really matter if the index “wasn’t supposed” to be something it became. The problem is the same. The only difference is who you blame.

The current situation is unusual and the standard rules handled it fine. For some reason they're changing the rules. That's not "no index can handle all situations." It's a deliberate, harmful change.