Melvyn referred to penal in that quote you used in your OP. It strikes me that what you propose isn't inherently penal but whether it was would depend on its deployment. I'd be interested to hear what sort of hazards Melvyn was referring to.
My thought was that Melvyn tried to express two separate thoughts in the same sentence. I agree that defending against the aerial game is not necessarily "penal", as a lot of features can be built on diagonals to encourage a particular angle of approach ... the essence of the strategic school. When thinking of penal hazards, I think first of cross hazards, and those do nothing but ENCOURAGE the aerial game.
Indeed, on the old courses, features like cross hazards and blind shots were an attempt to balance the aerial and ground games by dialing UP the need to display an aerial game from time to time. Taking the same perspective today we would need to dial DOWN the aerial game but hardly anyone is trying.
Tom
Cross hazards - to an extent I agree that cross hazards were originally used as a test of the players ability to get the ball off the ground. However I've seen at least one routing plan from the 1890's which shows that there was room to go round the cross hazard at the expense of not being able to go for the green, a basic risk reward approach. And of course there is the angled hazards that you refer to.
Blind shots - I'd disagree that blind shots necessarily encourage an aerial game. I can think of at least two holes, both at Silloth, where the green sits nestled on the other side of a high ridge where experience tells you the best play is landing the ball on the up slope or on top (ie. where you can see it) and allowing for the run over the top and down the other side, rather than attempting an aerial game which invariably results in either catching the down slope on the ridge and shooting through the green or landing too far up the green and running through anyway.
I can also think of a number of par 3's where half the green is blind due to a mound/dune/hill side in front, and which calls for a shot landing on the slope and allowing for the run down onto the green (for some reason the mound/dune/slope etc is always on the left !). Spey Bay, Elgin, Strathlene, Kingsbarns (2nd) all have this kind of hole. Of course to top class golfer can still go straight for the green but I doubt that's the percentage play for the average golfer.
Niall