Highly speculative, and I suspect that I don't do these models justice:
The purpose of these boards seems to get people acquainted with their programming model. Not as in using board and model as a turnkey solution (if that happens, fine, but this is not the goal), but as in getting potential customers for future boards to learn how to make their own models or third party models run on the board. The more models they supported out of the box, the less well the goal of building buyer-side expertise in the programming model would be served.
The purpose of these boards seems to get people acquainted with their programming model. Not as in using board and model as a turnkey solution (if that happens, fine, but this is not the goal), but as in getting potential customers for future boards to learn how to make their own models or third party models run on the board. The more models they supported out of the box, the less well the goal of building buyer-side expertise in the programming model would be served.