I think pending EAD would still leave someone in a limbo as you don't have it NOW - PD's probably don't like that for obvious reasons. people probably have to select H1 or J1 as you'd need some status
on the other hand, pending permenant residency applications with current EAD in your hand is great as you can work anywhere and do not need any sponsorship.
however, I did see 'immigrant' status on ERAS, I think i'll be giving those folks a call for clarification, to the posters on this thread, i think calling ERAS people might yield the answers we're looking for.