I would argue that the fact that Apple spent the vast majority of the iPad Mini announcement with a giant picture of the Nexus 7 behind them and comparing/contrasting features would make this article incorrect.
I wrote this in a previous post: The iPad Mini is different than anything Apple has done before. For the first time Apple is NOT building a product to enchant brand new customers and grow their brand. Instead they are filling a hole that they feel was threatening to pull their customers into other ecosystems. "Don't mind those other, more affordable playgrounds. Pay attention to how we mill the shit out of this block of aluminum just for you."