Why won’t the University of Maryland talk about the chocolate milk/concussion study it was so eager to promote?

This is why we need our stroke associations to analyze and vet all research related to the brain. But we have craptastic stroke associations doing nothing in this regard so survivors are probably jumping the gun and drinking chocolate milk because if it helps concussions there is a miniscule chance it might help stroke survivors. And hot chocolate has proven benefits. What's the downside? 10 teaspoons of sugar per serving.
http://www.healthnewsreview.org/2016/01/why-wont-the-university-of-maryland-talk-about-the-chocolate-milkconcussion-study-it-was-so-eager-to-promote/
Here are the news reports on the initial release from UMD;

• Stat News: Can chocolate milk speed concussion recovery: Experts cringe
• Beyond Chron: Got concussions? Chocolate milk marketing mania
• Consumerist: University Ripped For Pushing Chocolate Milk As Concussion Treatment
• Baltimore Business Journal: University of Maryland crosses ethical boundaries with chocolate milk study, experts say
• Inside Higher Ed: First Chocolate Milk/Concussion Debate of 2016
• Quartz: Schools are stockpiling a chocolate milk that claims to stem damage from concussion
• BoingBoing: University of Maryland claims sponsor’s chocolate milk helps concussion recovery
• Digital Journal: School criticized for saying chocolate milk can treat concussions
• Stack: The Best and Worst New Ideas in Concussion Prevention

Read the complete article for an analysis of what went wrong.