This issue is like most any other: it depends on the person walking and observing.
I think the absolute best way to observe A SINGLE HOLE is to sit and watch a number of quality players (tour pros, top ams, whatever) play the hole and see what the results are. Compile where various shots end up and what the results are.
I will admit, this beyond tedious. But if you really want to learn, this is what you'll do. Itzhak Perlman didn't learn to play the violin by playing a piece once. Neither did Eddie Van Halen, if you prefer rock. Nor did Tiger. Or Tom Brady. Or Ted Williams. Or Albert Pujols. Or Sid the Kid. Or Bill Gates and coding. Or Tom D, Gil H, Jeff B, Mike DV, or Mike N, or any other architect designing. Or any other true professional at whatever his profession is.
None of you will ever know as much about printing t shirts as I do (and you should be thankful for that, btw). But that doesn't mean you can't point out something I missed or overlooked! And it's up to me to carefully evaluate all considerations and criticisms.
The notion that any of us can walk OR play a hole once, or a couple times, and really learn something meaningful is beyond silly. You might pick up something, the architect can only hope you pick up the right thing, at least as he views it. He might even learn something from you! I doubt many architects anticipate where I hit the ball.
Yet it is a notion we all indulge, because we all want to be seen as having meaningful, thoughtful opinions.
I'd argue they may be thoughtful, but they likely aren't all that meaningful.
That doesn't mean we shouldn't have fun discussing and debating this stuff on here, it just means we should each understand our limitations.
And I think few of us do, myself included.
Just my opinion, your mileage may vary....