There are two easy ways to determine if you can get the 100K.
1) Call AMEX and ask.
2) Go to the AMEX website listed in the invite and enter the RSVP code. See if a name appears in the, presumably, pre-populated form. If yes then no; if no then maybe.
By the way, even if you manage to sign up and get approved for the card, the 100K is still targeted to someone else and you may not get the MRs.