Hancock had no need to say what he did. It was a pitiful attempt to make a government who haven't covered themselves in glory, to seek a bit of glory, and score some anti EU points whilst doing so.
I'm with Tajj though, what is claimed is disingenuous. Add to that we're staring down the barrel of no deal in a few weeks time when importing anything from Belgium, let alone this, is going to be a nightmare. This stunt gives us a few weeks worth before it gets messy.
A humble "we're grateful to those who developed it.." would have been more sensible than the "look at us, aren't we clever, we nipped in before you lot..." that he actually delivered.
Amateur conduct, and no wander the grown ups are trying to row back from it.