That isn’t “good enough” confirmation for me, either.
I’m afraid that the only person I know who got Pharos-Ra this past week got it randomly from a few keys on a GLORY chest, and definitely NOT the Event Chest.
I’m the one who originally kicked off this inquiry (over here on April 10th) of whether it was possible to pull Pharos-Ra during this Event week. Unfortunately I think my fears have been confirmed instead… I used 435 Event keys and 4100 Gems and came up with innumerable Bone Dragons, but no Pharos, and of course I no longer have resources to get this week’s Mythic.
I have absolutely terrible luck getting any Mythic during its release week even when I do have resources. So I kind of wonder whether it may be the way I actually use keys? Maybe I should try doing 1000 individual single key pulls and see if that works. (Only half joking there)