I suspect it's not beyond Saudi TV's technical capabilities to fuzz out his helmet, stand fast @endure. Helmets aren't worn on the winners podium so no danger there of upsetting the paymasters.He's using the fact that they can't stop him, and they can't refuse to show it on TV to his advantage. It might not be everything, but it's also not nothing.
It reminds me of the boxer at the height of the BLM frenzy telling people to boycott white businesses whilst forgetting that many of his sponsors are white businesses. So yes I'd say that he's showboating.