Hi justplay,
If the World was perfect..... I guess you never watched an entire Women's event. We know who the cream of the crop are. Some of the Women still can not run a rack of balls on the loose equipment. If they tightened up the pockets, you would have much longer matches time wise. Having said that, some of the "new" group of players, a few of whom post here, are making things more interesting. They have been brought up and coached on much tougher equipment than even five years ago. Still, there are women who do not measure up and, just as in the men's events, are field fillers. I know something about that.
As far as seeing few missed shots on 4.5" pockets. Players who for years have made a living out of "cheating" pockets have a very tough time with correctly shaped small pockets. They can not hit the shots as hard. Spin sometimes takes the object ball out of the pocket. As I mentioned before, some of the recent events held on loose equipment have brought out high finishes for players that have rarely done well in recent times. Whether the two are connected or not is debateable. What tight pockets do is bring the best talent to the right side of the chart faster.
Your comparison to bowling is interesting. What you don't see is the lane condition. As scoring is of prime importance, the lanes are blocked. There is a well established groove on both sides of the alley center. Once the bowlers find it, the scores go up. If the bowler misses, even by one half board, the results are catastrophic. Multi-pin splits. Whole blocks of pins standing while the ball drives straight through. Seven and ten pin taps on seemingly solid hits. Don't be fooled that the balls aren't bigger. There are other ways of accomplishing the same results!