Methinks those who have passed comment on ETOPS operations have never flown them and/or know very little about them. I doubt very much that stornaway was the ETOPS alternate but it probably was the nearest suitable Airport with adequate medical facilities.
Try explaining to the inquiry why you elected to fly for an extra ten minutes in a time critical medical emergency.
Local knowledge is all well and good but the crew in this case were not local. They had to rely on the information made available to them by their company, along with the assistance of local ATC.
ETOPS is a planning exercise it cannot and will not cover all eventualities.
It sounds to me that the crew and the local airport services did a sterling job in difficult circumstances and should be commended as such.
Hopefully now stornaway will invest in a suitable set of steps and company manuals will highlight the lack of ground equipment until it is improved.