The big thing working against planars for pro apps is their relatively low efficiency which limits their practical ability to go loud and clear compared to other designs.
PRo apps are mostly about being efficient as a result of having to manage costs yet utilize gear often required to fill large venues/rooms/halls. Hence the tendancy towards high efficiency speakers in particular that can be driven to high volumes by more modest powered amps.
Or more recently, highly efficient amp options are available (Class D) for pro apps as well, but there is still no practical case to be made for using planars for pro apps.
Also most planars tend to be very delicate not designed to be able to take a beating like good quality pro gear.
Most peoples rooms at home are not nearly so large so the options there are broader, plus aesthetics and other factors come into play as well.
So planars not used in pro applications probably can be attributed to many things that have nothing to do with sound quality really.
PRo apps are mostly about being efficient as a result of having to manage costs yet utilize gear often required to fill large venues/rooms/halls. Hence the tendancy towards high efficiency speakers in particular that can be driven to high volumes by more modest powered amps.
Or more recently, highly efficient amp options are available (Class D) for pro apps as well, but there is still no practical case to be made for using planars for pro apps.
Also most planars tend to be very delicate not designed to be able to take a beating like good quality pro gear.
Most peoples rooms at home are not nearly so large so the options there are broader, plus aesthetics and other factors come into play as well.
So planars not used in pro applications probably can be attributed to many things that have nothing to do with sound quality really.