The advantage of the cutting angle is that it is much easier to set up than a double iron. Practice makes perfect, but not everyone wants to take the time to learn the skill.
This may be the crux of the matter. Setting the chip breaker for optimum performance can be a fiddly task at best. Too close for the thickness of cut and the shavings jam and stall forward motion. Too far back and the chip breaking effect is lost with thin shavings.
For many people resetting and constantly taking their plane apart to adjust the chip breaker until it is just right will be chalked up as something that doesn't work with the ease they expect.
jtk
"A pessimist sees the difficulty in every opportunity; an optimist sees the opportunity in every difficulty."
- Sir Winston Churchill (1874-1965)