Dav
I read/heard that as well. That's why I'm hoping to get a first hand account. What I saw and the commentary at the time, didn't make it look/sound that bad. I'm not sure which holes I was watching. It was early in the round though, so I'm pretty sure it was the front 9. The most exposed holes are the middle/late stretch on the front, I think?
It may well have been too bad at the time that it was called, but that's not what it looked like on tv. At St Andrews they definitely didn't call play when balls started oscillating. Balls were moving and penalties were accrued. Maybe that was after the line was crossed, but they were monitoring the situation very carefully and seemed comfortable with balls oscillating. This was all at the (very exposed) loop, the rest of the course was fine.
One thing was different. At St Andrews it was sunny and not raining when the wind was up. At Hoylake it was raining and nasty. The greens at St Andrews weren't that fast, but as green as Hoylake was I doubt they were faster, and I'd bet slower, but that's a guess. But since it was actually raining, I think a pretty safe one.