I can't help but feel the delay in itself is an unspoken assessment. Were it simply that things got pushed due to travel, one would expect a ripple effect in the timing of the other reviews. That the two new iPads and the new Mac Pro took precidence rather than review in order of release would seem to suggest that it is the least interesting of the recent product releases.
Not to dismiss it, as it's likely an impressive step up for many, and is ultimately bound by what CPU tech is available.
At any rate, I'd been starting to think about upgrading my 2011 mbp when these were announced, but my gut feeling was that the performance gains of the past few years haven't been substantial enough to warrant an upgrade. The screen and size is nice, but honestly I have enough nice screens with other devices, and what I value from my laptop most is having a mobile workhorse. By that metric, there's not much new for me in the latest crop.