Hi,
Unless Blizzard comes out of hiding and confirms whether or not Development Hell still exists (and/or whether Josh Mosqueira is still available as a Rift Guardian), it’s not possible to give a definitive answer.
There was a topic on this subject matter here; one player said he found it at the end of last Season (on 2 Apr 2022) but did not provide other proof.
I also have been looking for it and, like you, have yet to find it this season. But that does not constitute conclusive evidence.