It's worth trying especially if you get marble and/or pop growth from a hut.
Right, lets recap:
Stonehenge is built at around turn ~40-50 at deity with epic speed.
Pottery takes about 10 turns, calendar about 20 with size 3.
Mining the same 10 and masorny another 15-20.
That allone makes roughly 60, but THEN you even hook up the marble which adds another 10 turns.
Sorry, just another dumbass Deity is too easy thread. Even if you kill off your continent before 0 bc ... You will never, ever win the game, because YOU KILLED YOUR TRADING PARTNERS! (Well - we could play a duel sized map

Edit:about the ability - like i said, you can go to war early, but it will result in -5 to +5 GPT, no money income from trading partners, no CC, no growth, no happiness and i could go on and on.