I would not be surprised if there were a reason for the warning.
Silica gel packets look a lot like the sugar packets people use to sweeten coffee. Sugar packets are mostly handled by tired people. If silica gel wasn’t clearly labelled, a misplaced packet could be mistaken for sugar and poured into a drink. And since most people don’t know what the words “silica gel” mean, a direct description could be mistaken for branding.
Silica gel packets look a lot like the sugar packets people use to sweeten coffee. Sugar packets are mostly handled by tired people. If silica gel wasn’t clearly labelled, a misplaced packet could be mistaken for sugar and poured into a drink. And since most people don’t know what the words “silica gel” mean, a direct description could be mistaken for branding.