I casually spent 2 weeks after the quest became available as I was stuck in ARR MSQ just for a lance relic.
The difficulty had been much reduced and with level cap now at lv80 you can just breeze through any ARR dungeon.

IMO. The only grinding was light hunting. Even so, I only spent 4 days for it. Mahatma was even faster (one crystal tower run per mahatma).
Lowering difficulty even further would just reduce its charm.