This sounded like a spin to make the result look better than really is.
With $50 price cut that happened not a long time ago, going up is what should happen, otherwise it would be a sign that the current price isn't working.
Sony strategy is working, that's good, but not impressive because that's what normally happen when the price is down.
That is like saying the PS4 sales aren't impressive because it is the more powerful console and it should sell more. The fact is that the entire package that is the PS4 has impressive sales.
The PS4 also sold for $299 just last month. It was not a given that going back up to $349 would not have depressed sales as people waited for the $299 price point to come around again. Something similar happened to the XB1 last January before they were forced to reduced the price again.
It's not some preordained prophesy that the PS4 is selling so well. It was by design. What's going to be the next excuse to down play its sales.
"Well of course the PS4 would sell so well. Uncharted, one of it biggest franchises is releasing."
"Well of course the PS4 is selling well. It has Ratchet and Clank in the movie theater promoting it."
"Well of course the PS4 is selling so well. It has a huge VR marketing push going on."