This article is from after the brexit vote about what might have happened in the event of a no deal brexit. We are currently in a grace period on import checks, and this week we've seen warnings from food suppliers about what will happen after the grace period [1]. This shows it wasn't "ridiculous".

Frankly I think the BBC did pretty well. Political parties didn't draw clear lines at first, and covering the full spectrum of opinions was probably impossible. Overall Farage got more airtime than his MP count would suggest was necessary, and he was sort of balanced by the Lib Dems.

Even with a deal sandwiches have been confiscated as a result of brexit, so in some way there really has been a threat to sandwiches [2].

[1] - https://news.sky.com/story/m-s-warns-of-price-pressure-and-l...

[2] - https://www.independent.co.uk/travel/news-and-advice/brexit-...

Actually kudos to the BBC for pointing out possible supply chain issues following Brexit. We should have seen more of this kind of challenge to both sides.