So many terrible takes in this thread. I don't mean the ones giving Barkov deserved criticism, I mean the ones like "he cost his team the cup", "he should lose the C", "It's Tkachuks team". Absolutely horrendous takes. It's interesting how differently people view Barkov here compared to other hockey forums, like in Reddit for example.
I think this forum might just have more "old school" hockey fans who view Barkov's somewhat non-chalant but effective playstyle as "soft" and "heartless". His calm personality might add to that feeling: he doesn't punch people after whistles and is a quiet guy. That doesn't mean he should be stripped of the captaincy.
He almost always makes the right decisions on the ice (aside from some shoot/pass offensive ones), and is a terribly effective and reliable in what he does. He is a coaches dream player in a way. If you don't see how Barkov played a part in Panthers reaching the finals, I don't know what to tell you. Remove Barkov from the team, and they don't sniff the finals. Heck, they don't even make the playoffs.
As a Panther fan, I wish Barkov would become more selfish and shoot more. I wish he was less injury prone. He has his clear flaws. Like Tkachuk, who can take stupid penalties and is not as effective when not scoring as Barkov. Like Bobrovsky, who is the definition of an on/off goaltender. He can steal games and series when on, but when he gets rattled, he gets lit up. Putting the blame on Panthers losing on Barkov's shoulders screams stat watching, or watching the games with limited understanding. I'm not sure which is worse.