"these may be attributable to Anderson instead of Snowden"
The blog post is a write-up of a conversation between "a group of cryptographers from industry and academia" and Snowden, one of whom was Ross Anderson.
There are things that were said during this conversation that you disagree with. Why do you assume that they were all said by Snowden (or Anderson). There were several others present ("As well as over a dozen cryptographers there was at least one lawyer and at least one journalist familiar with the leaked documents"), who could have been the source for these particular remarks.
The blog post is a write-up of a conversation between "a group of cryptographers from industry and academia" and Snowden, one of whom was Ross Anderson.
There are things that were said during this conversation that you disagree with. Why do you assume that they were all said by Snowden (or Anderson). There were several others present ("As well as over a dozen cryptographers there was at least one lawyer and at least one journalist familiar with the leaked documents"), who could have been the source for these particular remarks.