I don't think it's a great rebuttal, quite the opposite actually: it's the same prompt with the most obvioy tweak you can imagine and the results are all the same. That definitely looks like it's been something the models have been trained on, and not some emergent capability (and if you take into account how nonthinking Luna compares to the SotA models from a year an half ago: https://simonwillison.net/tags/pelican-riding-a-bicycle/?pag... it becomes even more obvious)
