It's a joke, that's the punchline.
The corollary being the axiom:
"If your problem is that you're stuck in a hole, the
first part of fixing that is: do not make the hole
deeper by digging, since that makes the problem worse."
As opposed to the mindset of developers being akin to a coal miner, where the goal is to dig, and a bottomless pit is not a problem, it's the goal. (in other words you stay employed)
Consider the lyrics from the song Trust Your Mechanic by Dead Kennedys.
Trust your mechanic to mend your car.
Bring it in to his garage.
He tightens and loosens a few spare parts.
One thing's fixed, another falls apart.
Trust your mechanic to make you well.
You're seeing an awful lot of him now.
The quicker he makes your life fall apart,
The more money you put in his pockets.