When the Hub4 was first released. It was already yesterdays technology.
So I guess this is the point where a hub will have the shortest ever lifespan. What is the point of VM making headline grabbing 8Gb tests when the latest hub cannot deliver 2Gb.
There is an upside to this. Maybe VM will stop concentrating on speed and look to their service offering to improve customer numbers. As Openreach and others continue to roll out FTTP. a 1Gb service will become more universally available and VMs much lauded speed advantage no longer relevant.
The first draft Wireless 6 (ax) hardware wasn't released until late 2016, so the Hub 4 couldn't be designed to include hardware and technology that didn't exist at scale and Intel's ax hardware wasn't released till 2018. - https://en.wikipedia.org/wiki/IEEE_802.11ax#Silicon
It may be current - But it's full of F/W flaws and issues.
There is one easy solution here. But VM refuses to do it. GIVE THE CUSTOMERS A CHOICE - Yes for 99% of customers the home hub will be fine (unless you read VM's twitter pages where people have nothing but issues with it)
But for that other 1% of customers who I am one of, GIVE US the choice to have business-grade hardware, but charge us for it and no I don't mean the crap HITRON CGNV4 (that's about as good as the home hub) The kit you install for leased lines is 100% spot on.