To be honest, I tend to agree with the OP that all manufacturers of canna products ought to be more sensitive to. GLN could have easily made there bag free of cannabis imagery. I live in a US state that is still on the extreme anti-canna side - I appreciate the need for discretion. Folks like @archie gemmill , @Maria Sanchez and the @OP live in countries where the police are much less burdened with procedural restriction than in the US.
Canna product manufacturers need to understand that we don't all live in California or Spain. that the little things matter, and that a 'cool' trendy logo that sells in Colorado might cost me my freedom in Texas. Sure, I know the risks. Sure I choose to do what I'm doing freely. Still, why risk losing a customer to the penal system if a simple logo change could prevent it?
The weed industry is in its infancy, and everything they are doing is new and untested. Its up to all of us - growers, users, and producers - to establish the baseline standards that will become the new normal as the legalization trend continues. Starting by having canna neutral packaging is an easy step that will not only make us a little safer, but will ultimately help with the image of the canna industry among the voting public.
By my reckoning the packaging was free of any imagery, it was only when opened did the offending piece of paper appear.
Therefore you can't blame the business for the packaging of their product as NOTHING on the outside seems to have given a hint towards the content, and you cannot expect any manufacturer of any kind to change their packaging to suit an individual as that packaging is their "brand" and you accept that you are buying such "branded" material so should expect their brand and logo SOMEWHERE once the external packaging is opened.
Don't want labels INSIDE packages that have a cannabis leaf on them, don't order these products. Simple as that.