It's not really as simple as Weak vs. Powerful. Processing power, energy consumption, technology, etc are all vast spectrums every company dealing with hardware tries to find balance on. Weak/Powerful are relative terms that are meaningless without a point of comparison, either competitors or intentions. Both the Wii and Wii U are probably exactly what Nintendo wanted at the time, but their chosen balance cost them in other areas.
But, you know, Nintendo has had its place in the industry long enough for anybody seriously following them to realise if you truly want the mainstay of third party support you need to be looking elsewhere. You've three other options.
Agreed, the 'intentionally weak' statement is just them stating the obvious, they design the console according to what they think it needs to achieve their vision. It has nothing to do with the actual real-world console performance compared to the other consoles on the market.
And thinking that they are going to bend over backwards and throw away their own standards and ideals just to court EA for a few months post-launch is quite frankly laughable. Third Parties are not coming back by just throwing up a few higher numbers on the spec sheet. The console will for the most part be a device people buy only for Nintendo software and Nintendo knows that. Now their fans need to realize that.