I like Roland more too (got a G70), but when it comes to Super Articulation stuff, sorry, but Roland haven't got a clue.
Rumor was, they had a new arranger in development that used this feature. I guess they played it for a few people, and it was so bad they shelved it (but released it for the organ division, who don't have much SA voices to compete against). Hopefully, they are still working on it, but I can wait until it competes successfully with Yamaha. I am not holding my breath. Even if the get the technology right (like Korg have), it takes quite a while to develop the content for it (as Korg are showing).
I can wait...
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An arranger is just a tool. What matters is what you build with it..!