Not very it would seem given that "pipa" does not mean "pipe" in the sense TPB are using it but rather only in the sense of a "pipe for smoking". A pipe in the sense TPB use it would be "rör". But relating the combination "trash" and "pipe for smoking" to their line of reasoning seems at least a little harder/more far fetched.
An interesting statement overall, but sentences like the one above have to make you wonder how seriously TPB is thinking about the issue.