Seriously, you lost all credibility with that statement. Steve Jobs was definitely not lying when he said the iPhone 4 was the biggest leap since the original. Let's see, the iPhone 4 introduced us to the Retina Display, the A-series processors, a sleek industrial design, HD video recording and iOS 4 was a fairly significant update as well. That does not sound like a glorified 3GS to me.
Hell, 2010 was a big year for Apple in general. That was not just the year of the iPhone 4 but also the original iPad, the 2nd gen Apple TV and the current generation design of the MacBook Air. Seriously, Apple wowed the hell outta me that entire year and I have not felt the same level of amazement since. Pretty much every Apple product launch since seemed underwhelming.
Many of the early products released under Cook still had that Steve Jobs stamp of approval which was why they were extremely solid offerings, if predictable. The Apple Watch announcement and launch did not generate any enthusiasm for me or really anyone for that matter. The original iPad announcement and launch felt as special as the iPhone and iPod before it, I remember the excitement and interest that I and many other had going in to check out this new class of product. The Apple Watch is a glorified iPhone accessor being marketed as a fashion statement, not really deserving a being considered in its own class of product especially since it's entirely reliant on another. That was Tim Cook's chance to show the world and (not keep insisting) that Apple was still the same innovative powerhouse it was under his predecessor. Obviously, it's not the runaway success they were hoping for but Apple is never one to admit failure or even slight disappointment. Obviously a gen 1 product will much much improved over the next couple of generations (and there is a lot that needs to be improved), but the Watch hasn't generated nearly the same level of buzz and excitement that the iPad and iPhone did before. There's a reason why Apple is not comfortable about disclosing sales numbers.
It's one thing to somehow imagine Cook being anywhere near the level of a visionary that Jobs actually was, but to downplay when one of the last significant products of the Jobs era as an incremental update is quite insulting.