cutting against a strength

In the article called “Five reasons Trump’s widow story stings” we have them named: It cuts against a strength; It re-enforces a weakness; It makes a bad story worse; It’s evidence of a sloppy White House; It’s (another) distraction.

In my interpretation of ‘it cuts against a strength’ I was relying on ‘to cut against the grain’ phrase, and interpreted the former as ‘it reduces a strength’.
Was I correct?