The article's suggestions seem to be in line with the government's stance. The main difference is timing with Dr William Hanage saying measures should have been adopted weeks ago while the government claims their modelling tells them to adopt measures later.
The government should be challenged by questioning whether it truly is/was impossible to contain the epidemic and what the best time to introduce different measures is. This article, however, adds very little to that debate with hand-waving in place of evidence.
[0]: https://www.gov.uk/government/news/covid-19-government-annou...