Obviously you wouldn't put balustrading around the edge of the Cliffs of Moher or the Grand Canyon and I take the point:
"There is no such thing as safe... only safer..."
However, comparing the safety of travelling by machine with that of traversing the steps on the Skelligg Rock is somewhat disingenuous.
The Skelligg Rock is one of only two Irish sites which are on the UNESCO World Heritage List.
The following comment comes from the Unesco website
"The protection, management, authenticity and integrity of properties are also important considerations"