Yeah, probably, but:
1. I am trying to move the discussion away from economics, demonstrate that I do understand the subject at least to a degree and that I'm not merely arguing for the sake of it but doing something positive.
2. It's a sketch of a an unbuilt design and it specifically states on the schematic that values are subject to revision. It's 40 years since I designed a tube amp and I freely admit that I stuck in some of the values without a lot of consideration. I don't establish final values for SS designs at this stage in the process.
3. I don't put a lot of trust in the sim. myself, but as to exactly why, that's for me to know and you to wonder.
Now, I can go on and build this thing, or I can go back to working on the numerous other projects I've got going, it's no skin off my nose.