Tinker
Correct that for many slow swing speed ams, loft will help them hold greens better, but its not a universally applicable notion. Trajectory is a large part the result of back spin . Trajectory comes from dynamic loft ( not static) swing speed and ball spin. The latter influenced by the ball used the and the club head design. Satic Club head loft is not as important as people think and just one piece in the equation. In fact modern club head designs even with their lower lofts can produce as high , even higher trajectories . the following is a piece of the summary from a club comparison test copied from a Mygolfspy.......comparing a number of different designs and lofted 7 irons.
"It goes without saying that loft has an influence on distance, but perhaps not to the degree, or at least not in the way golfers tend to think. While it's true that the lower lofted clubs in this test produced more ball speed and ultimately more distance, the relationship between static loft and launch angle was disproportionate to the actual difference in lofts between clubs. A 5° difference in loft produced only a 1.37° difference in launch angle, and the lowest lofted club produced the highest peak ball flight.
This would seem to validate some of what the OEMs tell us about game-improvement irons, specifically CG locations and the resulting influence on launch (they launch higher).
"The key thing to remember is that specifications almost never tell the complete story, and there's absolutely no such thing as an inherently good or a bad loft."