I don't think customers actually care
Customers want storage, and they want it reliable, cheap, and flexible. I do not think a nebulous concept like "openness" is really on the priority list, because few customers want to deal with the inevitable integration and interop headaches that result from mix-n-match.
And there are all-flash arrays that don't feature SSD's at all! I know that IBM's flash boxes use boards stacked with flash chips, instead of the typical RAID'd SAS-attach SSD's. (And I'm sure other flash boxes do this too.)
And I love the yammering on about Mom 'n Apple Pie ideas of treating customers well... that sounds like an argument for sensible pricing, quality service and support, etc. I don't see how it ties into needing to deliver storage in a different fashion.
