No you haven't, your explanation is correct. People have seen the word essential and then not bothered reading the rest of the govt information. They are then going off on an incorrect, high handed rant about people doing what they are both entitled and encouraged to do, go to work. Do it safely, keep 2m apart but otherwise keep working.Have the rules changed recently? As far as I understood it, there was no requirement yet for the business to be essential. The only requirement was that the person had to work from home unless the job they had could not be done at home.
I’ve seen a few people refer to the term “essential”, but I’ve not actually seen it in the guidelines. Have I missed something?