It's not emulating a crippled chip, it runs on the i486SX (which has no FPU, by artificial limitation or not), and emulates an x87 FPU.
reply> It's not emulating a crippled chip
reply"Initial reviews of the i486SX chip were generally poor among technology publications and the buying public, who deemed it an example of crippleware." [1]
[1] https://en.wikipedia.org/wiki/486sx
EDIT: I get your point but this is what OP was referring to