The period from March 2020 onwards is an example of how the world economy managed to largely carry on, and in particular how businesses continued to trade and people managed to live without regular flights
It will likely be used as justification by environmental campaigners as to why reducing the amount of air travel remains compatible with economic growth (outside the travel industry) and continuing international trade, and without major political protest.
It will be much more difficult for Govts to resist the idea of applying more taxes to air travel