I must disagree with this a little... hypothetically, if someone barely met the PCAT cutoff and also barely surpassed the GPA cutoff will get an interview. But, this person, regardless of how exceedingly well they do on the interview, will most likely NOT gain admission because of poor PCAT and GPA... they even mentioned in the invitation documents that they can (and probably will) increase PCAT cutoffs after interviews to weed out people.
example: person with PCAT composite of 20 (who passed all cutoffs), and this person also has a 70% GPA (with all prerequisites), and this person also does well on interview... do you think that this person has a good chance of getting admitted?
I don't mean to be pessimistic here, nor am I trying to scare people who have low-ish PCAT and/or GPA... I'm just saying that I doubt UofT would admit people with really low PCAT and GPAs solely because they did well on interview... rather they should be looking for well rounded people with good/strong academic background AND good communication (or "soft") skills.
I don't know, you would be surprised how many people absolutely suck at interviews (or speaking of any kind), I would think those people would be cut before anyone else. I think GPA and PCAT would be a factor if your interview is moderate but if someone really nails the interview out of the park then I see no reason why they wouldn't gain admission.
I know its not the same thing, but with many jobs, once you make it to the interview, you are pretty much just judged on the interview itself and how much they like you.
Even Waterloo Pharmacy doesn't look at your admissions profile again once you make it to the interview stage so I wouldn't undercut how much the interview can play a role in the admissions process.