A brand builds its reputation over the years for being a certain way. the when what's inside the package changes, it is still relying on its reputation for how it was over the years in the past, to sell what is in there now.
Otherwise, why not just put what is different now into a totally different tin with different branding and start over?
If someone packed some bright leaf into a McClellands tin and sold it to you for $100, are you going to be pissed? I mean, you bought it hoping to experience what smokers in the past were smoking? Right? Otherwise, you would call it fraud, ammi right?
I mean, if you just want any old shit in a tin, why not buy something else, maybe something cheaper. Otherwise you're a fool. IMO