You don't need an investigative mind to figure out the pictures.
The Victor is going full chaff down the runway (see the exhaust and heat haze), and then takes off. There is nothing at all abnormal here apart from the fact it was unexpected from the viewers perspective and not advisable from an airworthiness point of view.
Whether the pilot fancied re-writing history or there were some other factors at play I guess we'll have to wait and see.