Because neoGAF is not a massive circle jerk, that's why you didn't realize it.
The problem for your nonsense is that we didn't reach some 'conclusions', there have been a neverending stream of rumours from very reliable sources that have echoed a litany of similar features all of which are extremely negative on average for the consumer. As neoGAF is a community filled with consumers, it's no surprise why the majority would react harshly.
As for anyone 'heralding the end of Microsoft', I'm a consumer. 360 was my favorite console until Microsoft released that Kinect abomination. Then I just disliked all the consoles. But there's no doubt PS4 is far more exciting as a consumer than the new Xbox sounds to be, and this is not 'jumping to conclusions' it's simply evaluating what we know about PS4 versus what we do know about Durango and then combing through the most reliable rumours we have.
PS4 has been designed so far in every way to be extremely friendly for developers, indies, consumers. There has genuinely not been a single shred of negative news about the system except maybe that their initial reveal could have used more exciting videogames, which most of us know we'll see at E3.
And why wouldn't we be excited for PS4? it's a gamers dream machine.
But that's not all they have said. JUST from the initial reveal we got more news than that ->
+ Words from virtually every developer on the planet about the massive change in philosophy toward helping devs and having a friendly, easy development environment.
+ Words from any Indie that has bothered to comment about how great PS4's indie philosophy is in every conceivable way, with considerable detail about why it's so great
+ Words about how massively powerful the system is going to be, and what it's potential is now considering its unprecedented amount of super fast RAM.
+ Words about the SHARE button, which is one of those innovations that genuinely have huge implications for games without being a pointless gimmick.
+ Details about every aspect of the controller, from its touch pad and color indicators.
+ Details about the new PlayStation store and the various ways the new interface will be changing the game
+ Details about the new downloading schemes: start playing games as soon as you start a download.
+ Details about the new online infrastructure and what it will mean for games
+ Details from weird creepy Crash Bandicoot guy about the extensive change in approach toward courting anyone who wants to make anything on PS4.
In short, we got a plethora of information that gave us a massive idea about exactly where Sony was going with PS4.
I'd only agree with you that the current slate of game announcements was rather unimpressive (except that Drive Club game), but I hardly expected them to reveal very many of those before E3, which will be their big show. The important thing was understanding the philosophy behind the system, who is supporting it and what their outlook is, and we got all of that with the PS4 unveil.