difab4 on What SD Lacks

I think there is a major flaw in the EZ/SD lines.
That being the fact that the more expensive product (SD) lacks key features from the less expensive one (EZ)
There are many (most?) who would like to have the sound quality and flexibility of SD with the programming capabilities of EZ not to mention the user interface.
Now the only solution is to program in EZ and trigger, manipulate and route in SD, cumbersome.
I think the solution is simple, put all the functions of EZ into SD. Then there will truly be an upper and lower choice; SD with everything and EZ with some key features but limited in others.
In other words what usually happens with upper and lower line products