Yes, it is legitimate that the Land Transportation Office (LTO) has extended the validity of driver's licenses with expiration dates from September 2021 to October 2021 until October 31, 2022. This is due to the ongoing COVID-19 pandemic and the restrictions that come with it, which have made it difficult for many drivers to renew their licenses on time. However, it is important to note that this extension only applies to licenses that expire during the specified period and that drivers should still renew their licenses as soon as possible to avoid any issues or penalties.