I’d guess it was probably a combination of a quick roll-out, and also concern that people wouldn’t know what to do with them hence a lot of the text is emphasis

I’d guess it was probably a combination of a quick roll-out, and also concern that people wouldn’t know what to do with them hence a lot of the text is emphasised. (I could also imagine there was mostly testing in “laboratory” conditions, scanning codes displayed on screens, but hard to say.)