After 24 hours of owning mine, I've only opened it up on the freeway a couple of times, but I can sense what they mean from the lack of power. It's not an issue for me whatsoever. I had 5 people in the car and we were able to stay pretty zippy, making lane changes and accelerating to pass other drivers.
Let's face it - it is a big heavy SUV, and given what it's got at the price point it hits, I think it checks all the boxes for the majority of people looking for something like this. For those who want more speed/nimbleness (and less payload room), I'd say keep your eyes peeled for the 2018 Tiguan coming up around the corner....