I couldn't put it better myself and it's sad others are so shortsighted you got instantly shut down simply for not elucidating the blaringly obvious.

We have a researcher saying hey you DBAs who are busy building using existing systems should be making your own systems; and in the same breathe acknowledging that takes 25+ people and a never ending bucket of money. Riiiiight.

Boo hoo SQL + DocumentDB isn't enough? I never saw any justification for the premise.