They're pretty minor. The kind of stuff that is politely ignored normally unless there's a sufficient political reason to make it into something more.
Like the use of "that" in a sentence to refer to a term used previously in the thought rather than just prior to it?
If the only part of that speech which portrayed a collectivist ideology and downplayed (or even outright dismissed) the accomplishments and contributions of small business owners to their own success was that one sentence, you'd have a point and the whole thing could be dismissed (politely even!) as a minor gaffe. But the context of his speech shows otherwise. Unlike say the context of Romney's statements which are apparently being massively misrepresented in the liberal bubble. And frankly, amusingly so. Almost desperately so. It's like a group of people looking really really hard to find some reason to attack Romney (well, defend Obama really) that they'll pick up on the most minor thing and then attempt to turn it into a major thing.
They're trying way too hard. But I guess the London environment is the only one on his trip that's likely to be chock full of Left leaning media, so that's their best shot at doing this sort of attack. Not surprising really, but kinda embarrassing how obviously hard they're working at it.