Assuming that most people export audio wav files to further process them in a DAW and finally create stems, it would be very helpful if Dorico would not export each player but each instrument in the flow to a separate file.
The required info is already displayed in the galley view so it should be relatively easy to implement. Today I produce a separate version of my project moving all shared instruments to empty handed players which is time consuming for percussion kits.
Thanks for your assessment of what should be easy or difficult to implement, @mavros. It’s always good to let us know what we should be finding easy 
That said, I agree there is a use case here, and although I actually don’t share your view about how easy this would be to implement, I will make a note of it as something for us to consider in future.
Sorry Daniel it was not meant like that.
The fact that the content required for the export is already presented in the galley view might make it easier than e.g. exporting designated articulation groups in separate files i.e. shorts, longs and FX articulations like many composers do in their DAW. From a mixing point of view this might be of interest.