I think they did, they completely underestimated demand world wide. Every single unit they are manufacturing is producing is being sold, stock is really hard to come by except on ebay where enterprising middle men are making a lot of many thanks to this situation.

theres not a place in the world where there isnt a shortage of ps4's.
and btw PS4 will win in the UK, too.

Well in all honesty they fucked up majorly in Australia. It's sold out until February over here since September, yet XBONE now holds the records for fastest selling console in the country so go figure.

Hopefully they will redirect some shipments for the sake of Australians, but i guess its a nice problem for Sony to have for once, being too popular that is. 

Sony is selling whatever they make. I don't see the issue here. The US is so important to MS, so they have all right to focus on it.