Having read that article again, I now realise how inexperienced (there is no other word for it I'm afraid) the "experts" are.
They say it will reduce the effectiveness for picking up fine dirt... Umm, no! Not with a good brush roll. And as for cylinders, well, do what America does and fit Power Nozzles.
All manufacturers need to do is look back on history and see how Hoover got the dust out of carpets back in 1908 - BEATING.
Of course the method would have to be changed slightly to make it compatible on glued down carpets, but it could be done.
I'm just glad my carpets aren't glued so I can use my good old agitators for dust removal, even if it does let some back into the air via the poor filtration, or even better use my Turbopower 2 and 1000 with the activators which work nigh on as good AND have good filtration.