A 'public' wifi hotspot is either run by, or connects to, an ISP. What's the difference there?
LTE-U will be used by the 'public' to access an ISP (that happens to be a cell phone company). By your standard, would all of the above be disallowed as they run through a company network to get to the Internet, or would they all be allowed as they are being used by the 'public'?
Sure, it gets quite complicated when you start talking about customer operated equipment that provides commercial service (xfinity is a good example) but perhaps the critical test would be "is the transmitting equipment fully managed and controlled by the individual?"