Sobari

You're going to regret it soon..

The architecture for the current Wii U CPU didn't exist then.  though no doubt, some of the lessons learned from having to squeeze every last drop of performance from a chip were carried into the new design.

And the Wii was always going to be what it was.  The Gamecube tanked, despite its mighty hardware and Nintendo had to find a way to climb back into the game.

At the time, they couldn't risk losing money on hardware like sony and MS did (due to poor market position and the lack of funds that a hot console provides), so they couldn't compete on a pure power basis.  What they did was find a novel way to return to form while catering to a new market. And they succeeded beyond anyone's expectations.

That's what allowed them to do what they have now.  They want the best of both worlds. Power (though likely not as much as the PS4, next Xbox, but not far removed either) and innovative control.  and they have it.  they are of course selling at a loss since the system is pretty packed with goods.

The CPU is not weak, horrible, or slow. It is in fact more capable than current console CPUs. by itself.

the clock speed is less than the current systems.  But that's where the complaints come in from lazy developers looking for a quick buck.  they try to quickly port their heavily optimized game to Wii U and it turns out more time and money is needed to rewrite the code to make use of superior architecture. The code written to perform a few tasks for many cycles must be rewritten to perform many tasks during fewer cycles.

When the word "slower" is used, its a misnomer.  It can actually do more in the same amount of time.  But pure clock speed is referenced.  However, if your code relies on cycles and not written well for the architecture it's running on, you are going to have issues.  No doubt 4A games saw the hassle and couldn't justify the expenditure to make a worthwhile port of their game to a new console Made by Nintendo after the Wii.  Probably taking the wait and see approach.  And if you aren't backed by a rich parent company or something, who can blame you.  IF sales aren't spectacular on the old systems and the port to new architecture is costly, then that's a financial risk that is hard to stomach.  you always have to prepare for the worst.  No doubt an increase of clock speed on the Wii U CPU would have resolved this for them, since they wouldn't have to change much.  But it is what it is.  And it doesn't actually reflect on the "horribleness" of the CPU. It is simply horrible for their situation.  Until they decide to wake up and realize that time and effort often goes rewarded.  I can see them wanting in on the action in a year.

The Tekken Tag developer was misquoted. and he simply meant that clock speed was less.  So they had to rewrite some things to... you know... actually work properly with new architecture.

Beyond that, the studios that are taking the time to at least tweak their code are being rewarded handsomely.