Quit rocking the boat!
They take "multiple" core samples and so the science is sound as can be! Core readings are very reliable in determining previous global temperature averages.
(insert image of kool-aid drinking bobble head doll nodding here)
;-)
When your present & future salary and job security is based upon causing a stir, you learn how to cause a stir no matter how much kool-aid you have to drink along the way.