The future you envision, and that the MOMENT short film seems to envision, is one where it is more or less implied that everyone is connected to the same network.
The basic idea of a hive-mind could actually work in a less restrictive, less hidden way.
I can imagine a positive scenario where people are temporarily Laced.
They might have "connectors", lace-particles with no network connectivity or programming, acting as I/O gates, that are permanent, but people would then plug in temporary lace particles designed to interface with the Connectors, but that would degrade over time and lose their functionality.
I can imagine scientists "plugging in" to such temporary hive-mind systems to work together, consciously pooling their different perspectives, communicating much faster than would otherwise be possible.
Of course, I'm not belittling the danger. The idea of lacing everyone in society would be way too dangerous for quite some time, and probably used in just the dark ways you, and MOMENTS, imagine.
But I still believe there's positive potential in the technology. it's just about figuring out what we want the technology to be able to do, and then avoiding the "general computing" trap that makes the upcoming Internet of Things so extraordinarily vulnerable to exploitation (everything's a computer, so everything's hackable) by making the devices specific to their purpose and testing them exhaustively for vulnerabilities or unintended side-effects.
I think this is another piece of so-called transhumanist propaganda, and another step towards eliciting acceptance of what will be a technocratic trap.
Yes, most tech has multiple uses, so why do we always end up with more control, more disempowerment?
If we had a genuine culture of empowerment, then we would actually see mainstream promotion of mind sciences, meditation etc, and a general exploration of our deepest psychic possibilities. Instead, we are promised techie "solutions" when we have not yet reached either the limits or consensus of what we can individually experience.
That is my main argument against so-called trans-sub-humanism - we are promised comic-book superpowers without promoting expanding our current abilities.