Wyndham Worldwide Corporation is directly impacted by the changing landscape of the vacation industry, as highlighted by the article. The company's reliance on the traditional timeshare model, which is increasingly seen as inflexible and outdated, especially by younger consumers, poses a significant risk to its future growth. The article's emphasis on the growth of alternative accommodations and the potential for the timeshare industry to adapt or decline suggests a negative short-term impact on Wyndham's stock.