You're conflating arguments.
Of course it is okay to criticize Zion. You can criticize his shot selection or his foul shooting or whatever.
But the "Beta" argument is silly. It is like some stupid "clutch gene" argument Skip Bayless might use. Skip and Shannon will now debate whether Zion has the "It factor." That's meaningless garbage. Does Zion need to be more aggressive on offense? Yes! But this Beta stuff is nonsense. That's the only think I'm objecting to.