Don

Sometimes there are 2 ways some text can be understood. This might imply a pun and be deliberate but it might also imply we do not know enough of the specific context to decide. Both possibilities are allowed by faithful exegetes.

If it is 1 deceived woman or a group of deceived women in Ephesus does not make much difference in the APPLICATION as far as I can see; the key thing is that the situation was specific to Ephesus.