Post-communism capitalism required a lifestyle change. Long vacation - workers mind set shifts back to the iron rice bowl days and don't bounce back right away.
I had a friend with whom I played chess weekly. He was from the central south region of China. He explained to me what it was like working with guaranteed employment. On a nice day he would decide to leave for the park and sit in the sun. His boss would insist he go back to work. He wouldn't. So, a change from such a mind set might be difficult and could crop up again after long holidays.
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And I just learned it's possible that post-holiday shipping may be bogging down export.