One of the biggest differences is the amount of control one has over a shot. In golf for instances, (not accounting for wind obviously), if I make a great swing and send the ball down the middle of the fairway, it should end up relatively close to the center of fairway. Even with wind, you can judge how far left(right) you need to aim to have the ball end up in the middle. However, in bowling, the less advanced players do not see transition and do not know how to move. They will make a perfect shot off their hand, (same as last shot that might have struck) and have this one hit a dry patch, hook through the face and left the greek church. That would be the equivalent of hitting a perfect 8 iron right at the pin, and all of a sudden a bunker pops up in the middle of the green and your ball plugs in it.
In my opinion, there needs to be more restrictions on lane conditioner, lane machines, oil patterns, bowling balls, ect. There was not as much guessing back in the day. Scores were not as high, but I venture to say that more people enjoyed bowling more because a 150 guy had a shot at competing with a 180. I would say that back with urathane balls and less dense oil patterns, there was a much greater difference between a 150 avg bowler and a 190 avg bowler whereas today, on today's house shots, there is not that great of a difference between a 190 avg and a 220 avg. Granted, the 220 is much more consistent, but half the time, the diff is the 190 cant make a spare to save his(her) life.
I believe bowling needs to dial things back a bit, focus more on the youth and the actual "sport" of bowling, rather than teaching everyone that in order to be great, you need 600 rpms and high speed.