I actually didn't find O'Connor on likeable whatsoever. He really seems like the kind of person who would benefit from intensive therapy to work out his own demons. He is likely quite difficult to coach, but I think he will find his way.True. He actually ended up being pretty endearing to me.
I think when you start assembling all the data points of interviews, on bike behavior, behind the scenes stuff (possibly staged to a degree), there are certainly some riders that come across as generally nicer people. Fabio seems pretty decent most of the time. Pidcock comes across as a very self-interested douche.
There is of course confirmation bias and any other number of lenses we look through. I'm not sure how much Netflix series like this changes people's minds, or reinforce the opinions. For me, for riders that I was not really thinking about and had no preformed opinion (O'connor, Phillipson, some team managers), it was pretty interesting.