Thanks for the reply.
I appreciate the time you took for the reply. The non-interference rules for unlicenced spectrum would appear to be the basis of the Marriott decision. But if some operates their wifi hotspot in a public space without intent to interfere, regardless of the number of others doing the same, can the operators of the public space physically deny them the ability to do so by telling them to stop or their credentials will be revoked?
Since, as you put it, the air waves are public space, does physical disruption count with regards to the Marriott decision or was that strictly intended to prevent active electronic disruption? Many comments forcefully state the latter and if that is true than the whole article was just click-bait. But if everyone is to share the spectrum, how can any user usurp the power to block others by any means and then direct them to their own costly WiFi?
I honestly don't know the answer and don't really know if I could find the answer. But I would be interested to know, one was or the other.