However, SARS-CoV-2 RNA has been found on environmental surfaces in hospital rooms, quarantine rooms, and other community settings, implying that the surfaces can become contaminated with SARS-CoV-2 despite few studies being able to culture live viruses.46,52,79-82 Additionally, new variants with potentially greater transmissibility continue to emerge, and they may behave differently on surfaces than the strains that have been studied to date
So yes, there is a reason to do what you say is "theatre"
So yes, there is a reason to do what you say is "theatre"