Was the Philippines troop shortage MacArthur's fault?

Was it MacArthur's fault that he had fewer than 20,000 troops to defend the Philippines?

No, the troop shortage was not his fault, but his withdrawal from active command for roughly 24 to 48 hours after the attack is still criticized.

A viewer argues that MacArthur could not be blamed for having fewer than 20,000 troops to defend the Philippines. The force allocation itself was not MacArthur's fault, but inadequate resources must be distinguished from a commander's response to crisis. The criticism here is that MacArthur withdrew to his quarters and ceased active command for roughly a day or two at a decisive moment. The exchange is a compact lesson in separating structural constraints from personal command responsibility.