A crit in FFXIV is +50% extra damage as default

Mostly a question to those more in the know on a facts-and-figures basis.

I'm curious as to exactly the power level of Awareness in current 3.0 content. Outside of nullifying the penalties for Raw Intuition for Warriors, it's mostly seen as a trashy better-than-nothing cooldown, but I'm curious exactly how the figures stack up and whether it has any additional use in 3.0.

From what I understand, a crit in FFXIV is +50% extra damage as default (though players can increase their amount via crit rating), so a boss that auto attacks for 3000 could potentially crit you at any time for 4500. Do we have any idea on percentage chance to crit? I've heard 5% thrown around in threads. If it's 5% chance to add 50% extra damage then Awareness is a meagre 2.5% damage reduction when it's up, vs crittable attacks only. It would still make sense to press during a moment you're expecting burst damage so the low chance of a crit auto doesnt add to the burst, but as a generic take-less-damage-for-a-bit cooldown it would be about 1/3 as effective as Foresight.

I did hear that Crits are rolled for -first- before block/parry, so if a mob has 5% chance to crit even if you have 100% chance to parry (eg, Raw Intuition) you'll only parry 95% of the mob's attacks as the 5% crits will "pierce" your parry/block chance. I guess this makes Awareness more effective when popped alongside something like Bulwark, Sheltron, Dark Dance etc.

So outside of auto attacks, what else can crit? Is it purely physical damage auto attacks? Can the magical auto attacks from A4's boss crit despite being unblockable? Are there any tankbusters or big attacks that can crit? (I don't recall ever being crit by a Royal Fount from Oppressor). Are there any phases in bosses in 3.0 content similar to Shiva's Bow phase where there's a huge boost in crit chance and Awareness becomes necessary to survive?

Because if Awareness is purely helping around -2.5% damage reduction on purely physical/autoattacks, it's barely ever worth considering and may as well just be popped on cooldown, but if mob crit rates/damage are higher than I've heard it could be a cooldown almost as effective as Rampart against certain situations.

I'm just not sure if 3.0 -has- any of those situations yet.