TOC 5 isn't really blind on a lay up. I'll give you 13. Not convinced by 4.
I think 5 is as blind as it gets really except for a hole like 15 at Cruden Bay. While it's possible to stop the ball on the top of the hill with a view, that's never the play. It's blind from both short of the bunkers and from the dip. And the shelf is very short, so you're either going to go for the green or lay up short of the bunkers, both of which will be blind. With wind it's really going to play blind. Wind into and the top of the hill may not be reachable. Downwind good luck getting the ball to stop anywhere with a view other then by reaching the green. And who would try to run a ball between the bunkers up the hill to then get it to stop on that shelf? If you had that shot in the bag, you'd be reaching the green. If you watch play virtually everyone will be hitting a shot into the green blind. Even chips from green high left are blind. The exception would be those who hit a massive pull left in there 2nd and play from 14 fairway. But nobody does that on purpose. Those that do have a view will not have played strategically to gain the view.
As for 4, you certainly can hit it down the chute and have a view of the green (obstructed by the pimple). But no-one takes that on for a view. Some people will play for the chute if they can't make the carry left, but they're laying up anyway. In a match you might try to drive the second chute to reach/finish just short. But again that's very, very rare. With wind from the right it's gonna be blind. With wind from the left, you play well left away from the trouble, and it's blind. At the end of the day, if you go out and watch play, it will be blind for the overwhelming majority of players unless they play it to take 3 shots into the green. So, I'm calling that pretty blind.
I'm not saying that it's common or not. I'm just saying there are a few examples on both the Open courses in that corner of the world.