It seem the event "Stop loyalists from stealing supplies" can occasionally spawn Veteran Xocotl Flopper (mob from HoT area)
https://i.imgur.com/Ah31Iu6.png
https://wiki.guildwars2.com/wiki/Veteran_Xocotl_Flopper
Yup my 2nd account don't have EoD and i can use EoD stats on my legendaries armors/weapons/Trinkets (but not on ascended item with stats choice). So blog post was misleading when they said that relic come with all soto effect unlocked.
In the blog post it was stated:
Legendary relics will come with all Guild Wars 2: Secrets of the Obscure relic effects unlocked
https://www.guildwars2.com/en/news/legendary-relics-are-coming-soon/
Actually if you don't own Soto you don't have access to soto relics effect (like other legendary you can select expansion stats without expansion).
So is it bugged or was the blog post very misleading?
well with Cantha(and undead) we see that Dragon minion can still be a thing many years after Dragon death. So maybe there still many destroyer underground with maybe some champion able too create new lesser destroyer.
It's like that since 2012, you even can find some post about it in archive forum:https://forum-en.gw2archive.eu/forum/support/bugs/Lunatic-Inquisition-Unreachable-Cliff (2013) So don't expect for it to be fixed one day.