Personally, I think he's right on the money.
And I consider myself a huge Nintendo Fan boy ( played almost exclusively on Nintendo systems and handhelds since 1987 ).
I don't think he's opinionated or that he hates Nintendo, if you go and watch some of his older Pach Attack episodes he actually praised Nintendo all the time.
It's only after they made a few questionable decision ( as a company ) that he started to criticize them.
But he's right .
The huge mistake on Nintendo behalf was waiting way too long to launch a Wii U.
By 2009 the Wii was basically dead, but still a very popular brand.
Most people moved to other systems or PC gaming as a result of lack of games ( first or third-party ) .
Had the Wii U come 2 years early, it would have been riding on the Wii momentum and it would have been a huge competition for the PS360, with arguably better graphics and a cool controller.
By the time PS4 and XBone would have hit the market, the Wii U would have been an established platform on it's own with millions of happy owners and a shitload of games.
As it stands, with the next generation around the corner, developers have rightfully lost interest, plain and simple.
A lot of people will still get a Wii U for Nintendo games ( like Pachter said ) , but that won't be enough to make it a #1 seller ever again.
So I'd say, with all due respect, Pachter is right.