I agree, there's fault on both sides. The woman visiting a foreign country 1) could have read up on business culture norms in advance, 2) should have reacted less strongly to an unfamiliar norm, and 3) should have been able to mentally regroup herself much better than to let her work suffer for three days. As a veteran of many foreign business trips myself I know that even when I do #1 I will still be caught off guard by some things and absolutely must be ready with #2 and #3.

At the same time, I do not excuse a business person in their own country from ignoring the cultural norms of their guest. Consider a hypothetical situation where the shoe is on the other foot: A Japanese business person visits a company in the US. His (or her) counterpart, at their first meeting, strides forward boldly, grabs the Japanese person's hand with force, and pumps their arm vigorously, all while shouting an overly familiar greeting. If the American in this story were your coworker, what would you think? Nearly every well-educated American I have ever known would consider that person a clod.