It's been eroding/collapsing in pieces since at least the 1980's, and was itself formed because of the collapse of two limestone sea caves. Tourists probably didn't help, but it appears to have been an inevitable occurrence. The final collapse occurred during a storm with gale-force winds.
Finally, some pictures that actually show almost the same angle... i swear, you couldn't even tell it was the same area from the ones i've seen in the articles i saw before.