Kind of difficult to disagree with this one. I know it's passé these days to worry about trivial things like correct grammar, spelling, and usage. I've had fruitless discussions on this very site where people will argue that it doesn't matter how you use the language if, ultimately, the message somehow manages to get conveyed. Terrible language skills are not just found among new grads though, I've seen them across the workforce, including appalling spelling in communications from the SVP level. There's a non-zero cost, too: the cost of having to get people to repeat themselves, the cost of ambiguity when your manager poorly communicates their wishes, the cost of misunderstood information bubbling up the chain to decision makers. It adds up.