As they describe in the report, the philosophical assumptions are mostly inconsequential and assumed for simplicity. The rest of your critique is just describing what they did, not an objection to it. It’s not precise and they admit quite high uncertainty, but it’s definitely better than alternatives (E.g. neuron counts).
I’m just going to link the comment I wrote the last time you mentioned that Rethink Priorities report. That report continues to be of very little use in supporting such arguments as you present here.
As they describe in the report, the philosophical assumptions are mostly inconsequential and assumed for simplicity. The rest of your critique is just describing what they did, not an objection to it. It’s not precise and they admit quite high uncertainty, but it’s definitely better than alternatives (E.g. neuron counts).