If CAE can do it then could we re-open our Flying School?
No, in the UK the Coronavirus Act makes it illegal.
The military are essential workers. The issue isnt just intracrew transmission. To operate a flying school you need to stop lockdown for maintenance, the fuel pathway, ATC and you have to get everyone mobile. All this negates lockdown and increases transmission. The more lax we are the more people will die, the longer we will be disrupted, and the more businesses will fail