Ok - a couple of things. First, this cognitive computing will presumably need pretty accurate data. Anyione with any expoerience of health record data will attest that clinicians are not always locquatious and even simpe stuff, possibly important contextual data, is simply ignored.
Second - it bugs me that scare stories about data security being breached could stop very valuable research that makes use of these data. If we are going to get cognitive computing in the future then analysts need access to these data. Telling people that this will mean data breaches, insurance being refused, could dissuade people from giving their consent.
IDC claim they undertake research to aid decision making - how have they researched the future and come up with this rather jaded view? They seem to have completely ignored what we would need to realise the potentials of research using health data.