Yeah it was a thing on Mangler when PoP hit, druids sitting around in PoK offering 6-9 hour Dena buffs.
If you've played or boxed a druid since classic then you've been enjoying the benefit dena from day 1. That 6 hour SoW + Ultravision has been a nice perk from the get go. Druids then got it in the form of a clicky (Lycanthropic Staff) from Venril Sathir in Kunark. In PoP druids got the Group Form of the Great Wolf spell so now everyone can have the dena buff.