Not to sound like an apple fanboy but is it, though? I don't think anyone expected v1 to set the world on fire. They put a normal-for-Apple amount of time into trying to polish it as best they could be I don't think anyone bought a Vision Pro not knowing it was kind of an experiment.
I'm never going to wear some ridiculous pair of ski goggles as a computer. But I'm also aware that some day we're going to have some kind of functioning AR, and it probably started with the ridiculous pair of ski goggles. Faulting Apple for taking their best shot at a v1 of that eventual product is just weird to me. Yeah, most people shouldn't buy it, but isn't this exactly what they should do? Get something out there, see what works and what doesn't, and start iterating?
I suppose we'll find out if Apple thought it was actually a "big flop" if they never make a version 2, but I suspect they're thinking a little more long term than this blog.