Personally I’d have to disagree. I can see how on paper it makes more sense to have minimal housemates left at the end, but during my BBAU rewatch I found that with less housemates I was a lot more bored. Storyline’s had been drawn out, housemates were extremely bored and a lot of the time it was just the finalists reflecting and recapping.That is exactly what I want to see. Those final weeks with 3 or 4 housemates were much more entertaining than the later series with 6 or 7, and the final especially felt like an event with 3-4 people with all finalists getting decent airtime rather than them having to rush through 6 interviews.
I agree 6 finalists was a bit extreme and made the finale very rushed though. I just look at having 3-4 housemates in the final week to be very dated.