You know, I really didn't get that impression at all. Not that there's really a way to know for sure, since the interviews are closed-file, but I did have the feeling that Sinai is one of those true "fit schools" where they look for a very specific type of applicant. Numbers of course are a big deal, but definitely not as much as they are in other schools you've been interviewed at (NYU comes to mind...sorry I mdapps-stalked you 😀) so if they're fine for the pickier schools, I'm sure they're fine for Sinai. I have noticed that they tend to like high Verbal scores, for whatever reason, but that's just my observation which may or may not be based in reality.
I wouldn't give up hope either way, but I genuinely don't think that numbers are the main point of contention for Sinai.