You've really got to wonder how much revenue they really think charging for row 4 will earn them vs lost goodwill and people deciding to try the competition instead, and realising that the gap in product these days between QF and VA is much narrower than it used to be. And that sure as hell isn't because VA has got any better.
Surely there'd be more revenue in the long run generated via loyalty by being somewhat consistent with several other OW airlines and offering preferential/extra legroom seating gratis to OWS and above as discussed upthread. But then "loyalty" to Qantas is now just a highly profitable virtual currency sold to banks, supermarkets and petrol stations that mugs go out of their way to earn to buy toasters.