Sean, I've walked Inniscrone many times. Easy walk? Not really. But it is manageable. There are a few tough hills, but no 1/4 mile walks between any green and next tee. Although a couple (the hike back up the hill on the drop shot par 3 5th, across the road to the par 3 8th, and around the bend to the 17th tee) would be nice if shorter, but I don't think the property really allowed it.
Perhaps this could be a topic for a thread on its own, but I think Inniscrone is polarizing for many reasons, clearly a primary one being a couple of controversial holes (in the eyes of the detractors), 5 and 10. And, heck, throw 17 in the mix too. The detractors dislike those holes so much, IMO, that the course is not worth a return play. Those that love the course, like me, accept those holes, AND really love what I think are so many fantastic holes.
If a course has a couple of dud holes, is that enough to put it on your "do not play list", or as Jim Coleman might put it, "should never have been built" list?