I think one question you should be asking, Kent... is:
What image is Toyota itself trying to project?
Part of Toyota's success is in attracting that big, fat, middle part of the bell curve. That huge portion of the population right between totally brain-dead in an automotive sense and petrol-blooded on the other. People who don't want the fastest car or the most boring car, but something square in-between. They're not the most technical, nor the most ignorant of buyers (those people go out and buy Chevrolet Aveos...

), but they know enough to know what they want.
As part of targetting the "average joe", Toyota has tailored its products to appeal to that statistic. The Corolla has gotten dumpier and dumpier over the years... from a small and nippy people mover to a rounded space-shuttle with lots of elbow room. While this is true for most vehicle classes, Toyota seems most content to target "bland". While they do make the odd "sporty" versions of the Corolla and Yaris (yes, there is a turbo version in Asia/Japan), as well as special cars like the Tacoma X-Runner, most of their portfolio consists of vehicles aimed at convincing people they're a "safe buy".
And someone please teach them how to make a steering rack again. Despite the dead-feeling electric steering, there's more fun in half-a-minute of Fit thrashing than half-a-day of driving the just-as-powerful Vios (Asian Yaris) sedan.
"Sporty" and "Fast" aren't exactly "safe buys". Log on to any Mazda forum (I'm on quite a few of them...) and you'll see tons of complaints, ranging from shorn engine mounts to busted transmissions. So, while Mazda sells on the precedent of "Sporty", it doesn't normally project the image of "Safe".
In the end, Toyota's success at projecting this image has taken its toll. And this philosophy shows up in every new car they make. Sure, a new Camry may have a ton of horsepower, and scoot to sixty miles an hour in less time than my "sporty" Mazda can ever dream of, but it'll never feel as good a steer as a Mazda6.
But there's the rub. While your typical automotive enthusiast or journalist will love the Mazda6's well-connected helm and responsive handling, the stiff ride, heavy steering wheel and tiring drive turn away that 80% statistic that's square in Toyota's soft, comfortable and safe bracket.
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Modern Toyotas aren't bad cars. They're just not designed for the likes of us.