Bottom line is thst when you buy the MS it comes basically as a shell or framework from which to build your customised arranger instrument. It simply is not complete in and of itself and unless you are experienced in editing sounds and all the associative technical know how in programming sounds and editing styles ,prospective customers are going to struggle with the MS.Plus they are gonna have to have deep pockets to utilise the great sounds that are available out there on the market.
There ought to be more comprehensive information about what it can and cannot do so that customers dont have to find out its limitation after they have purchased it.