In
this game yes, they looked rubbish for half a match without McCaw, Carter, Sam Whitelock, Owen Franks, and Read on the field (5 starting All Blacks...). Likewise the Stormers looked rubbish for half a match versus the Rebels
I thought he was far from "rubbish". He isn't a game-breaker ala Robbie Fruean, but he was handy on attack (his distribution was good this match, and he made a very good kick at one stage), and rock solid on defense. He didn't make any errors that I can recall (apart from conceding a couple of close off-side penalties). In general he just made the right decisions at the right time, the only real downside to his game is his lack of top-end pace... hmmm that sounds suspiciously like another 13 that many describe at the best centre in the world

I'm not trying to say he is remotely in Smiths' class, just they possess a number of similar attributes that are often under-appreciated by the general public (massive work-rate, great at organizing defense, strong individual defender, low error rate etc).
I agree. Maitland also let through a try that Whitelock wouldn't dream of letting through. After watching this match I can certainly understand why Whitelock has been preferred over Maitland on the wing in recent weeks - Maitland looked lost defensively on a number of occasions. While personally I wouldn't start Whitelock over Maitland on the wing against the Bulls, I get the feeling that Blackadder is a very conservative coach so I'm predicting he will. Whoever he starts is going to have hard task marking Basson!
Like you, I have been very underwhelmed by Luke Whitelock thus far. He is touted by many as the best of the Whitelock brothers, but he hasn't really done anything to me that suggests he is a future All Black. To me it looks more likely that he end up being a Super Rugby journeyman like George and Adam, rather than an AB like Sam (though that still would make a far better rugby player than 99.9% of the population!). He is still young though, so has plenty of time to deliver on that potential that many of his coaches have raved about....