I would agree that there is a downside to it.....I don’t know that I’d go so far as you say on the Saudis, because low oil prices and North American production have all but destroyed OPEC.....and that NA production can ramp back up if Saudi starts to gouge.
But recall that if OPEC is destroyed as a cartel, then the former members are free to trade in the market as they see fit.
Global sales will result from the ability to trade, reliably produce, and take care of customers.