The PS4 isn't what we get when Sony's "pushed" by the competition, unless the "competition" for this exercise is mobile/PC gaming. The PS4 is what we get when Sony's is under no significant pressure and able to make very safe decisions every step along the way.
I get your general point, but I disagree with this part. This is a new PlayStation coming right off the PS3, and a lackluster Vita. It took the PS3 almost
four years to really pick up steam, and if that were a normal console generation, it would have ended off much worst and never caught up to 360 in reputation or sales. The longer gen obviously benefited Sony more than it did Microsoft, but it's also obvious Sony doesn't want another system where it takes
four damn years to start selling competitively or making a profit, so in that sense, they were under pressure from their past mistakes. Pretty significant in itself.
Also, it's even questionable if their "playing it straight to the gamers" was a no-brainer safe thing. To be honest it was actually a bit of a risk, because the assumption is/was that a new console launching these days has to knock it out of the park with anything and everything that makes it look like a media-friendly device. That a system simply
could not sell to the masses based just on its games. Before all the fuck-ups, at a glance it seemed like Microsoft was actually taking the less-risky approach (ironically now it's evident they have, but for wholly different reasons not related to marketing). By the market's account, Sony had more to lose with the "for the gamers" push.
The problem there, was that as we now know, MS overestimated the eagerness of the casual segment to buy a next-gen system this early, and marginalized the core/hardcore who almost always are there exclusively for the first year or so. They either figured the casual market for consoles was unchanged from 2010 (when Wii fell off) or that Kinect garnered new loyal casual customers for them. Wrong on both fronts.
Sony was getting a lot of praise from the core/hardcore since February but there was no predicting if they'd be enough to sustain initial sales momentum. It's pretty evident now that the core market is still strong, and taking the traditional approach of starting narrow and spreading out the appeal down the line, is still the best way to go.