I've gotten multiple mythoclasts, and even got the husk when the blades were roaming on earth and the crux on my second CE Hard raid. Still no gally, and I've never seen it drop for anyone.

I play with plenty of people that have it as well. Rare is a subjective word and is perspective based. I don't think food is rare but there are some hungry people out there who do. Some people may not have seen a last word drop even though they really want one. I've seen 6+ of that and several other exotics drop but not one gally, no land beyond or dragon's breath not saying I need those others but those are the drops I don't ever see. My rare and your rare are different.