Thomas Dai, In regard to playing low. In 1902, John Low was the leader of the traditionalists on the R& A Rules Committee who wanted to ban the new Haskell ball in part because it made lofting the ball so much easier. He felt that the game would become less interesting possibly forever...and he was right.
After WW2, playing "high" became so easy that at most courses, Greens Committees realized the shape and form of the fairway ground really didn't matter much, so they flattened out the fairways and removed the cross-bunkers. It was less expensive to mow the grass. The small- and medium-sized undulations and intervening hazards were mostly irrelevant other than for visual curiosity. Hazards were only needed for green surrounds and tee shot landing areas. Today, high arcing shots are still the norm except around the green.
In recent years, more golf courses have upgraded their green complexes with short grass and undulations to spark creativity and thought. The new greens require players to develop a variety of short-game skill shots. Maybe it's time to extend the thinking to fairways and to make them matter, but then again, people would have to play low and the ground would have to be firm.