Because we never have any idea what Eddie Mair thinks about anything, do we?
It's not about having an opinion it's how you express yourself, allow others to express themselves, it's a certain type of personality and empathy Mair has. O'Brien in particular is driven by a narcissistic craving for attention, I can't stand 5 minutes of him.
Not suprised if Mair is going to LBC, it seems much freer and more diverse there.