They are correct, these sanctions will backfire on America & possibly those who bow to these sanctions...
As is also stated, the completion of the pipeline is not in question.
What I can see is a manipulated business & economic environment which forces west and east apart. I await with interest to see the new realities on both sides. May have some real teething for everyone, although East is already ready for a divorce.
https://www.rt.com/business/476665-nord-stream-2-us-sanctions/