As with anything you need to take his rants with a grain (perhaps a handful?) of salt however in this case I think he offers a reasonable explanation - that a possible reason for an engine consuming some oil may be perfectly logical design decisions but that the manufacturers (as usual) fail miserably in customer communications.
'Excessive' oil consumption of course is a relative term. I have no problem putting 500mL in between 15k service intervals but if you're a VIP member of your local auto parts store due to your repeat purchases of VW approved oils then it's worth having this checked.