John K:
Unfortunately, I'm not familiar with what R. McIlroy did. But if it were to have something to do in some way with Rule 34-1, it is pretty interesting how it can work in practice. It can also be applied to that same interesting "Equity Principle" of "like situations shall be treated alike."
If you're not completely familiar with it here it is explained as clearly as it ever has been by Richard Tufts in his little Rules principles bible, "The Principles Behind the Rules of Golf." That book is something the Rulesmakers still very much tend to revert to for logic in some situations, as they should:
"Golf like life itself, leads those who play it into many situations that appear to be unfair. The successful golfer rises to the occasion and refuses to give way to fate or frustration. As can be seen, the so-called equity rule will lead to difficulty if applied with the idea of seeking a just solution in the light of the circumstances surrounding the individual case. The penalty for a Rule of golf is not adjusted to fit the attendent circumstances. The answer lies rather in defining analagous situations and according them all the same treatment.
The approach is not whether "this particular situation is unfair to me," but rather whether "others in a similar situation and I in mine are treated alike under the Rules."
This is essentially golf's "equity principle" within the Rules of Golf known as "like situations shall be treated alike" and it really is a pretty beautiful and unique thing to golf. It seems to me when golfers come to truly understand what it is and what it does they tend to truly appreciate it, and perhaps even generally tend to relax somewhat in frustrating rules situations and probably also come to appreciate even more the uniqueness of golf itself via its Rules!
I really do believe coming to truly appreciate this principle, what it really means, and how it works in practice, serves to make golfers less self-centered or even less selfish as they realize that they in their game and others out there with them in theirs are all in the same boat this way in that over time all golfers are going to get some good breaks via the Rules and all golfers are going to get some tough breaks via the Rules and in the end it probably all works out equitable or even about equally, if you will.