Just been able to watch this - and god, when Sonia is the best thing about something you know they've got it very wrong.
The final kind of summed up everything that was wrong with the season - too much focus on housemates who didn't deserve it, too much following a pre-determined narrative, too built around individual housemates rather than the show itself - so many were asked about Kieran rather than their own experience, which was incredibly insulting to all. Even Kieran is more self aware of how unwatchable he was than the producers. The final also seriously highlighted how important eviction interviews are - and how important it is to get their raw emotion the moment after they've been evicted, not months later.
Ultimately there was nowhere near enough focus on the people the final should be about - the finalists. It should have opened with the packages about the finalists and their pleas, and then bought in the other housemates for discussion whilst the vote remained opened rather than leaving it till the end. Indeed like every episode this series it felt like the first two thirds were just filler and then all the real action happened in the last half hour.