I can't really respond or discuss the vaccine stuff, except to say that the science is developing and policymakers are clearly changing their views based on that evidence as it emerges and their response as it impacts on the aviation industry. As the swings and roundabouts on various vaccines prove, this is a moving target and certainties are not in abundance. Personally I do think some measures are less effective than others but I also have sympathy for policymakers who are having to make decisions in a fast moving environment versus the certainty that people in various industries and just at home would like.
EasyJet has announced they plan to run 20% of their normal schedule between April and June and then see an increase over the summer, banking on vaccinated Brits getting to travel around Europe for their holidays. https://uk.finance.yahoo.com/news/ea...085203147.html