That's why it likely was a real helicopter. This is a pretty low-powered explosion, designed to just disable the helicopter. Here's a video of it on a real helicopter: https://xcancel.com/LucasGimne79974/status/2029851274955431963#m
Same lack of rotor movement.
And here's a screenshot of the video of the explosion, clearly showing smoke going underneath the rotors:
I don't think Iran has the tech to make paint float in the air ánd survive an explosion.
Having had Rutte as PM for a long time, this guy is a diplomat. He will say whatever he thinks needs to be said to whoever is listening to, without truly believing a single word of it. It makes him exceptionally good at maintaining relations, and that's what he's doing here: positioning NATO as an essential US ally, that the US benefits from. It's aimed directly at Trump and his sycophants.
And I mean it's his job to keep NATO together so sucking up to Trump is in his job description. But one thing is certain: don't believe Mark Rutte's words, since he doesn't really believe them himself.