wwhitehead: Your case is different; if there WAS a temporary obstruction out there when we played, we would do the same thing the Tour players do.
TEPaul: Thanks for your response. I get most of it. There's still one question I don't get: if you and I were playing a match under the Rules of Golf, and it got as windy as it did yesterday, would we have had no choice but to suspend our match? Could we really NOT have continued playing under the Rules?
Tom, Under Rule 6-8, two players playing a match can choose to discontinue play on their own as long as the overall competition is not delayed. In stroke play, a player could discontinue play on his own as long as he reports immediately to the Committee. But, if the Committee doesn't believe his reason for discontinuing play is valid, he would be disqualified.
If the Committee suspends play, you must stop. If it is for a non-dangerous situation, you could finish the hole, but then stop. In match play, the Committee might not be so quick to suspend play due to wind as the players do have more options.
As Tom and Jim have said, Rule 33-2d is what gives the Committee the right to suspend play. The reasons for suspension are vague because conditions vary everywhere. The obvious one is lightning which is cause for immediate suspension, but even that can be vague as depending on weather forecasts and information available, the choice can be made to leave players playing even though lightning may be visible. I remember on the Futures Tour we once kept players playing for 4 hours while an obvious thunderstorm moved through 20 miles south of us. Our lightning detector was recording 100s of strikes an hour, but while the players could see and hear them, they were never really near us and where moving away from us.
Darkness is the one where the Committee must make a tough choice. When is it too dark to play? What do we do when a player wants to stop? It sometimes depends on where we are in the tournament. For example, last week at the US Women's Open due to the storm on Friday, we couldn't finish the third round on Saturday. Since we knew we'd be coming back on Sunday to finish it, no matter what, the horns were blown a little earlier than they would have been if the last group was on 17 and could get to the 18th tee. We wanted to make sure that every player felt there was still enough light to finish the hole they were on and not leave ball markers or tees on the course for the ground crew to deal with. In other cases, I've seen players finish with headlights on the green to complete a round or a tournament.
The other easy decision when the greens start to flood, especially around the hole. We usually try squeegeeing the greens, but at some point we might have to surrender.
Wind is tougher, but if the balls are moving due to the wind playing under the Rules becomes difficult.
You said the player can avoid grounding his club, but if the ball gets moved by the wind and pushed into the club which stops or deflects it, it would be penalty under Rule 19-2. How can a player hit a shot when this is a possibility? Also, if he can't replace his ball without it being blown away, it gets very difficult to proceed.
Do I think that the standard is being lowered by what happened yesterday? No, I have faith that the R&A Rule Committee felt it not a playable condition on the holes at the end of the loop. Did they have a choice? Yes, but they also want to make sure that the players do have a reasonable opportunity to play the shot from where they hit it and not 10 or 20 yards away because a gust of wind moved it.