While [[Unconquered Spirit]] is a specific kind of passive talent that has a cooldown, it shows a hotkey ("1") as if it were an active talent, which other similar talents ([[Indestructible]], [[Butcher/Enraged]]) do not.
At the same time there is another bug that all the talents listed above show their button greyed (other similar talents, such as [[Dirty Tricksterer]], show the button in color).
Proof of the both statements (compared to junkrat's Dirty Trickster): https://imgur.com/a/1gjLs43
Note that the shield amount gained also mismatches Fenix's base shield amount, and matches the shield amount before the nerf (760 vs 800 baseline).