Maimonides’ approach to kinship through lust in a male

Maimonides ruled that the one who comes to an androgynous man through his femininity is exempt (Iso” 2:15). Doesn’t this mean that intimacy through lust with a male is not subject to the law according to Maimonides.
Although it is not clear why Maimonides divided it this way, we can see that this is his position, right?
Related to a ruling you gave under the leadership of Rabbi Sperber.