Gatwick controllers are a great bunch who do their utmost to avoid delays by utilising the single runway to the full.
Sometimes an aircraft cleared on to the runway for take-off suffers some delay over a minor problem. The aircraft on the approach is then given the instruction to "go-around" as the runway is obviously not available.
It is no more dangerous than that, and to suggest otherwise can only display a basic lack of knowledge or a journalistic attempt to fill space in a newspaper.
Please can journalists try engaging their brains before writing this sort of drivel.