I’m not sure how much of it was a bog standard “to cover our own backside… just in case” type scenario, and how much of it was a genuine concern (instinct tells me it’s the former).
As it’s in it’s infancy as an idea, I get the feeling so much will change, that they didn’t want anything getting out which may never see the light of day, or is twisted by an excited supporter into something that is actually far more mundane than it may appear.
There’s nothing worse than Chinese whispers about a potential feature, that turns from a pebble into Mount Everest, when all along, it’s just a little pebble
Worlds worst analogy? You betcha
Although I don’t think the people who took part in the research have much more info than those who didn’t - The discussions above could all relate to everyone.