You or some other interested person could go do that experiment and publish the results. It shouldn't be hard to figure out what hardware exactly they were using and get a copy, and the prompt also doesn't have to be exactly what they used, just similar enough in spirit. See just how similar/different the outcome is.
Using their own time and money to disprove corporate propaganda. By the time you’ve disproven it they’ve already released 10 new claims. “Why are you still talking about that old news, nobody cares.”
It’s like the firehose of lies but done by corps.
In this case at least it isn't that hard. Opus is available to pretty much everyone, and anyone of sufficient means (I'm guessing at least 95% of active HN) can also easily afford the hardware.
And obviously this isn't something that's being iterated on rapid-fire; there have been 2 relevant publications roughly a year apart. Absolutely no firehose of anything here. As such there should be no problem for someone with enough interest to attempt to disprove the claims, and hopefully share the results regardless of their findings.