How, I ask, would John Gruber respond to that? Imagine that it's been tightly polished and all.
Would he post a praise-filled entry lauding their innovation, heralding this great new functionality? Maybe I'm just being a jerk, but I think he would viciously attack it.
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I love how you're using a hypothetical scenario in which Gruber would very plausibly praise the implementation in question in order to undermine his credibility. He has often pointed out when a competitor does something better than Apple does, or otherwise markedly improves on the status quo.
All you've done is create a gestalt which people who don't know any better will interpret according to their biases. Talk about arguments that don't bear any scrutiny.