It was a claim not an estimate.
You are allowed to make mistakes with an estimate, but you have to backup your claims.
That's not my point. (As I said he "proposed" this performance.)
The assessments of OP around Crypto/Equihash are not in the mistakes category, that seems to be a lack of knowledge on ASIC side, IMHO.
Note that I have Zero and Zero experience on FPGA and ASIC.