He cited a GM plant that closed in 2008, under Bush. He's been called out on it before.
Did Obama really promise it would be open for another 100 years if he was elected? If so, I think it is a legitimate critique not of "Obama being responsible for causing it", but instead "Obama failing to meet his promises to turn the situation around. Which does sum up the GOP argument concerning Obama's economic record.
I mean, he spoke those words in February 2008. The most likely explanation is that he didn't realize how bad things were going to get a year later. "The situation" wasn't fully known at the time. It's basically criticizing him for failing to predict how badly things would get in Bush's final year.