It doesn't matter what the UK does, but airlines are not going to let the government drive off their best passengers.
Of course, back in the 80s, we flew with neither phones nor lap tops and did just fine.
I prefer videoconferencing or webex anyway, as do most of my clients. The days of requiring that business be done face-to-face are vanishing.
Then you aren't flying with them. It is the rule now in UK and expect it to start here within 6 months.