Chaotic narrative
Let me first say that generally speaking I enjoyed the first 2 series. The show has a lot of style and its take on how a fictional contemporaneous society might find itself dealing with AI was bold and inventive.
But does every event in this alternate reality need to connect to two families living next door to each other in suburban Sweden? The coincidences depicted are little short of ridiculous.
Let me next say that I understand that drama involves such short cuts lest a production be populated by casts of 1000s. But a more sensible approach might be to have had less stories going on in the first place. By the time of the final episode of series 2, drawing together all those threads resulted in an insane assembly of characters, as if by magic, all in the same places. Even in a fictional universe with Hubots, where I am already suspending my disbelief to a huge extent, the improbabilities involved were enough to throw me out of the moment with groans of disbelief.
I am a progressive chap and I understand that the old narrative style, wherein a single story is told in a more or less linear fashion with perhaps a few subplots, is now déclassé. But surely in a post Lindelof world we have learnt the lesson of overly complicated narratives in which things are not only not explained, but indeed cannot be explained; that audiences will be confused and dissatisfied by this lack of resolution and reliance on coincidence.
It would be nice if writers confined themselves to stories involving only as many characters as they can rationally fit on the stage available to them. Otherwise one ends up with all the sundry characters descending on Hub Battle Land for a spectacularly unspectacular climax.
In other words: this stuff won't fly.