It is too early to tell the impact. Onr full field event is hardly an appropriate sample. However, in response to the question regarding the importance of reducing spin if the same people win, the potential impact goes to some of the central issues discussed regularly on this site. If the new rules deemphasize distance and place a greater emphasis on controlling the ball, there may be 2 important impacts on architecture.
First, if the pros do not hit it as far either because they use a "spinnier" ball or because they throttle back, then those clubs seeking a "championship" course will not have to build as long a couse. Hence less renovations for the sake of length. Perhaps shorter new courses. We might even retire some back tees. All this will result in cost savings which might make the game a little more affordable. It will also lessen the gap between the courses played by the ordinary player and the pros making it more like the times of Hogan, Niclkaus and Watson.
Second, to the extent that the ability to generate spin is reduced, those seeking to hit approach shots close will need to approach from better angles than before. Thus strategic play will be rewarded and strategic design will be vindicated.
Too eearly to tell whether this will work but the potential is there.