The letter to the Govt refers to the arrival testing at the destination airport for travelers returning. I too think this extra test is a waste of time and resources. A molecular test in country will still be required to board a flight home and should be more than sufficient when coupled with proof of vaccination as is currently required. On the other hand If given a choice, I would prefer to submit to a test on arrival that is cost free and easier to obtain than running to a lab, paying for a test and hoping for the results in time to catch a flight while in a foreign country. If positive it has to be easier and cheaper for travelers to quarantine at home rather than abroad. It's not like there is any possibility of preventing the importation of Covid these these days.