I expect you're correct, but it's a pretty hopeless chip. Per this story from February, so it's not something that's suddenly appeared as an issue:
The license (still) doesn't exist. With enough political goodwill there's no reason that it couldn't, but I'm struggling to see where the internal pressure to develop such a license, just to help UK exporters would come from. Maybe Ireland as you say, but you'd think they'd just move into the European space vacated by the UK.
I'd give it until no later than the start of the summer barbecue season until the Government realises that all the hot dog sausages are imported from Europe and changes the law to let them in.