I have checked my travel policy (not naming it as I am not speaking on their behalf) but am not convinced I would be covered for laptop and other travel pieces of tech items that were stolen or damaged from checked baggage.
The reality is, there is no occasion I would agree to check in a lap top or similar. I presume the easy solution for passengers to avoid these bans is not to take a direct flight from the airports in question, instead fly to a country/airport that is not affected by the ban and then onwards to UK/USA. A hassle, but this appears to be a choice.
The interesting part will be the pilots/crew. Pilots and crew are subject to the same security requirements as passengers, in terms of liquids and metal objects. Does this mean pilots/crew will not be able to take stand alone lap tops and ipads onto the aircraft for operational use from the affected airports??