I think the #ChocoTaco situation is a scam. They never intended to discontinue it. They're gonna keep it off the market until we forget how big they were then bring them back in a smaller size.
It seems disappeared from the web, but Jake Gyllenhaal exposed Cadbury to millions on live TV (Colbert?) saying he actually called them and asked if they made the #CremeEgg smaller and they denied it. He then showed one he'd just got and one he'd stockpiled in his freezer and the lie was clear to all.
To quote from the advert, "How do you eat yours?"
Cadbury unveils 'world's largest' Creme Egg - https://www.bbc.co.uk/news/articles/c39jvll7yewo