Well, no.
What I'm speculating is that precise MMM measurement would follow PIR on any listening distance. So I'm basing my EQ on in-room MMM measurement, not on the single sweep or a bunch of them, as most EQ automated systems do but instead of MMM RTA with pink noise. I am also speculating that such correction can be full range as PIR (resembled with MMM) takes into account LW/ER/SP so it is safe to do speaker EQ based on it and not only room EQ in the modal region.
Such EQ is supposed to make best of your speaker but, as it wouldn't of course affect both DI curves, you are still left with the same directivity indexes. However, as not only LW but both ER and SP are potentially smoothed this way you can expect significantly better sound .