Spalding..... you don't honestly think that a product specialist or developer from Yamaha's workstation division is going to tout and promote technology from a competing division over his own.....?
The nature of corporate politics and finance (the more YOU sell, the bigger your R&D and promotional budgets) will always lead to an avowed ignorance about the capabilities of your competition (although I am certain they are more aware than they let on).
Unless the arbitrary differences between 'home' and 'professional" keyboards are removed at the corporate level, each one will continue to compete, rather than complement, with the other.
We ARE beginning to see the beginnings of the merging of the two technologies, but don't expect to see both sides jumping on the bandwagon while each side of this internecine fight figure out that the 'other side' has got technology and functions that they would like to see included in their own product (and preferable, not in the other's!).
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An arranger is just a tool. What matters is what you build with it..!