"an attack on objective truth."
Shakespeare's point is that the North Star doesn't spin like the other stars or move like the planets. That is still true even if it is changing in intensity. We can always look to the fixed star to find our direction, exactly like we can look to eternal truths in the Word of God for direction in life.
Your so right the north star is just a referance point to guide you in a northern direction the magnitude of its light does not matter( a cloudy night the north star is worthless), the north star is a constant referance point a fixed point to guide your way. But like you say the NYT does not like fixed points or any other guides besides its all knowing all seeing editorial wizards behind the curtain.