The use of analogue gear in #2 is one of those things that as someone who _already believed what Monty is showing here_ I wouldn't have thought to do. But it really heads off a bunch of arguments.
And twenty years from now it's going to be hard because you'll have to scrounge the gear from a museum instead of it being available for a reasonable price from eBay or borrowing it off somebody who kept it in the cupboard after upgrading to modern digital gear. So I'm glad Monty did it in that era where the gear was still available.
Honestly it is remarkable how many engineers (self-proclaimed or otherwise) in audio don't understand the basics of sampled systems and quantization. You'd think that anyone making broad claims about these kinds of systems would have at least a rough understanding of the foundational principles, but no.
And twenty years from now it's going to be hard because you'll have to scrounge the gear from a museum instead of it being available for a reasonable price from eBay or borrowing it off somebody who kept it in the cupboard after upgrading to modern digital gear. So I'm glad Monty did it in that era where the gear was still available.