That's the point, Hap. Dr. Zugibe's channel through the wrist bones does exactly that... with an entry IN THE PALM.
Hitting the Space of Destot is actually difficult and will not work in every attempt because of minute differences in the wrist... but the method demonstrated by Zugibe works every time, goes through the carpal bones of the wrist without breaking them, AND exits exactly where the exit wound in the wrist is shown on the Shroud of Turin.
This technique will easily support the entire weight of the body on ONE wrist, let alone two.