I hate to point out the obvious here, but the article doesn’t…
There was a potato famine all over Europe for two years, and Our Lady even seems to have warned everyone about it beforehand, as part of the La Salette apparition. However, people didn’t die in such great numbers all over Europe, because it was also two years of fairly good crops other than potatoes.
Ireland was the breadbasket of England at the time, however, and all the perfectly good crops other than potatoes continued to be shipped out of Ireland by the folks who owned the big crop farmland. The normal Irish tenant farmworker lived off his tiny personal plot of potatoes, and suddenly there weren’t any.
So basically you had people dying of hunger while everything but potatoes was growing like gangbusters, and while the mostly-English landowners continued to make lots of money off selling their crops to England. People from all over the world (including England, to be fair) shipped food to Ireland for famine relief, while the landowners kept right on shipping food out.
On top of the Famine, there were also cholera epidemics which were even more deadly than usual, since starving people don’t have resistance. A million people died and a million people emigrated to get away, so the population of Ireland dropped by 1/4.
So even if this show were being proposed for Ireland, or Canada or the US, there would probably be a valid complaint about it being tasteless. But proposing it for a channel in the UK is really, really tasteless.