For example: As we all know, this isn't about truth at all, its about plausibly deniable accusations.
Well, whose fault is that it's not about truth but about perception. Of course it is the fault of those very well funded pressure groups who represent the vested interests of CO2 emission.
The bottom line is that the real science happens in labs and in scientific journals, and the climate change debate is perforce dominated by people who have never been closer to the science than reading a book or article written by somebody with an agenda who talked to a few scientists who keep up with the climate change literature. (That's the only way the debate can be open and democratic.) That's the closest people get to the science, but scientists are forced to deal with their questions and complaints and flights of fantasy anyway. Of course scientists don't sound very scientific when they're forced to do this job, because it isn't science.
It also fits if you read this as a take on the attacks the climate scientists are facing, not on their own case. There's just not enough context in the article to determine exactly what these correspondents mean by the snippets quoted from what they've written.