I think you both mean, a vintage chip in 40 pins. But isn't it mostly about it everything not the CPU? The physicality of floppies, the sounds, tactility, ...?
If it was a V20 in the box, would you know or care?
Authenticity is an ideology not physics...
I understand your objections, I think. At least to some point. But I "can't have" a cpm machine from 1978. In 2025 they're awful, or insanely expensive. Etc. Oh I'm not saying "my" features overcome these things, or make anything authentic. They do not.
But having lived through and worked through that era on a number of them current machines, to me, personally, this thing creates important parts of that eras aesthetics.
Clearly ymmv. But this whole area is really interesting, "what is real"!