Can Violet Crumble be imitated? Or is there only ever ONE Violet Crumble? What's your experience?

[Being Australian]

A reader recently wrote to us asking, 'Is it possible that another
company can exactly copy the taste of the Violet Crumble?'. Well, at
Being Australian, we're not sure. So, we're asking you, our readers.
Have you ever eaten a 'Violet Crumble' imposter; a bar that looked
like a violet crumble by another name, perhaps? What was it like?
Does it compare with the original Hoadley's Violet Crumble? Since
Australians take their violet crumble very seriously, especially as it
was invented by an Australian, imitators are on notice to be careful
how they rumble with Australia's Violet Crumble.