As I said, I thought knowing exactly what Starmer said was important, so here is the transcript of what he said on the BBC Six o'clock news last night, via iPlayer (opening minute or two):

The key now is confidence. Do the public have confidence in the measures the government have put in place? Do businesses have confidence in the advice that is being given?

Moreover, the tone of voice was very much that he did not think they did have that confidence. People will differ, but to me that is better interpreted as him saying the government plans are inadequate, rather than they are fine and we must all back them.