Configssafenot - interesting handle btw.
I doubt that 'storms at check-in' is going to be the real challenge. Anyone with a laptop or tablet is giung to be aware of the ban. They may not be happy with it, but they won't be ignorant of it.
The real challenge to the ME3/TK and a few others is that business customers will be booking away from them. Not on the US3, as they don't fly everywhere their customers want to go, but on airlines with 6th freedom connections via their own hubs. If I was at one of the affected airlines I would be monitoring my future bookings and cancellations.
There is no way for anyone else to monitor what the real impact is, but keep an eye on business class prices. This will be an indication of how hard they are hurting.
This applies in Economy as well as some, likely a lower percentage, want to be on-line all the time. They likely will go via Europe and/or pay a little more for the privilege.