@AC7001 I don't know the applicant numbers from previous years but it sounds like most schools have significantly more applicants this year so the change from 1/2 to 1/3 could be that and the number being interviewed might be similar.
I haven't heard anything on how they offer but I know quite a few people who had Hampton interviews today and yesterday who are aiming for other schools so it would seem they should be over offering by quite a bit.