Not sure I agree with the 3 reasons stated but I'd add a 4th: the politics of the health care system makes it a people problem, not a technology problem. The technical solutions to "fix" health care exist (EMRs, Big Data solutions etc.) however the political capital is often lacking in environments where it's all about covering your own ass.

Having had experience in deploying a web app in the VA, I can personally attest to the lack of competence at the executive level at large hospital institutions.