Sounds like it's only changed a little. Not sure the roads or the car park could have handled a full-size coach/tourbus back then, and I don't recall any vendors, but I doubt it will ever be fully commercialized, and certainly not while Brexit makes it a pain to get over from NI. It's just too remote, and "good enough" cliffs are available elsewhere.

I was backpacking though the British Isles between college/university and law school, stayed at a little hostel nestled in the valley, and hiked up through the sheep shit to then walk down into the main viewing area. It was probably only a couple of hundred yards where I was doing anything actually dangerous, but while very fun, it was also rather dumb.