He cares. But he cares about staying in office slightly longer. If he wasn’t so weak, or a different pressure group held sway, we’d have been listening to a speech on why restrictions needed to be kept longer.
It’s the exact same as every other decision - the sole aim is the preservation/promotion of A. Johnson. He is the person who’s answer to the trolley problem is “well if I’m the individual, kill the others, and if I’m not I don’t care”