Except that if Lewis were more forthright, he'd more than likely be slated in some quarters for going 'against the team'.
I actually think he's been pretty candid lately, what with admitting that his own error at the start yesterday cost him a chance for a podium.
Remember Lewis' object lesson in taking a strategy decision into his own hands.
His team-mate blocked him, he failed to get his qualifying lap in, his team-mate grassed his team to the FIA for cheating, they got thrown out of the Constructors' Championship, he nearly got thrown out of the Drivers' Championship.
That's his experience of "going against the team". No wonder he's reticent!