That article is spot-on.
Since many politicians are lawyers, and lawyers and since most lawyers are adept at language, it's not surprising that parsing words and deflection on controversial issues dilutes accountability and responsibility.
A politician's survival is based on how little he can say in a great many words.
It's the Washington "two-step", to take a line from the film "A Clear and Present Danger".
And the Republicans are just as guilty about this kind of stuff as are the Dems. Little wonder that Congress is loathed as much as it is by the people when both political parties are playing the same tap-dance games.