I disagree I think the lockdown took place at the right time, the balance between enough cases to warrant it and the loss of liberties, freedom and employment for many. Had Boris locked down the place a month earlier people would have been up in arms, sledgehammer to a nut-type reaction. I also feel he is damned if he does or damned if he doesn't.
Throughout February at work in meetings the Coronavirus issue was the main topic, we were all aware that at some point it would impact our projects and our ability to go in to the office. 10 days before we were officially on lockdown my boss told me to make sure I take my laptop home with me every day .. just in case. A week or so before the official lockdown my company told everyone that can work from home to work from home. About a week later the government locked everything down so it was not a surprise it happened at that point, in my opinion.