If a company was losing, according to the link you provide, "hundreds of thousands of pounds,” because they can’t get the pickers, perhaps they should consider paying more than the minimum wage. Tight ****s. Anyway, they’ve just changed names to a dormant company so something smells.
If they could get the pickers, how would they accommodate them six to a caravan and stay within lockdown rules. I think this is more covid related than brexit related.