Sorry, but this is just plain wrong! Other sovereign countries (some of which belong to the EU) are closing their borders to the UK in an attempt to prevent transmission of the new variant of Covid from the UK. You can't pin this on the EU, no matter how much you'd like to.
we will have to see, if its just for 48 hours until they can work away around it with no contact unloading, putting that quick result testing in place etc them its to keep virus control. if they do nothing then there is more to it.