Historically it is a fault with humans as a species that we see doing nothing as the wrong way to go about anything. Sometimes doing nothing does not mean you are being inefficient or lazy or wrong.
With this new system, a few people appear to be making up their own delay times rather than using the continually changing, often wrong aman times.
The best thing about the new screens is that they warm you up even quicker when you come in on a frosty morning and you are a bit chilly. love the heat output.