I and the reason article I linked mentioned the uncertainty in growth industries. They are not expanding due to uncertainty and some of them are considering leaving the country.
To the extent there is any uncertainty, it has nothing to do with the government. Consumer confidence is low, unemployment is high. Businesses aren't expanding because there is no foreseeable significant increase in demand. Period.
I watched the Reason video. That guy is a total jackass. It's no wonder his CEO series consisted of only three interviews after he was on the video claiming that CEOs were afraid to speak because the boogeyman would get them. And I couldn't stomach the whole thing but in the first five minutes "uncertainty" was not mentioned once.
The companies that he mentioned as considering leaving the country are medical device manufacturers that are upset with the excise tax on medical devices contained in the Affordable Care Act. The problem is that moving to another country isn't going to do anything about the excise tax since it is based on sales in the United States. If they want to sell stuff in the U.S. market, regardless of where they are located, they tax will apply.
Moreover, it's a bit short-sighted for medical device manufacturers to bitch about the tax when the effect of the bill will be an expansion of the market for their goods as more people will have insurance and will be able to afford to buy their shit. But most importantly, this isn't uncertainty. The tax is 100% certain. They just don't like it, which is understandable, but it doesn't make anything "uncertain."