This isn't a sleight and is more of a rhetorical question, but why do we place emphasis on a sportsperson's personality?
Would we remember their personality 20 years down the line?
Interesting take on it, not sure I'm following you though ... I've got a feeling they'll (meaning every person in a pub) be talking about last year's TdF winner like they have the '66 World Cup for at least 50 years ... as long as cycling is kept in the focus of the public IMO.
In this family 'Sir Brad' can do no wrong, even when he does a few things wrong

... people like him because the fan thing requires some empathy and he's hit the Zeitgeist perfectly, there's not much to look forward to in the news these days and a 'normal bloke from Kilburn' chalks up at the front of the TdF, is refreshingly rude to journalists and the wider media, yes he says what he thinks to everyone but does it with wry British humour and a lack of any real malice; he has put cycling right back in focus ... my kids report that they talk about him in lessons at school.
Froome offers less in the way of a media riling reportable character but as long as he produces racing like in this tour, then no-one will be too bothered.