But on the other, the same sentence could be written about software deployed to traditional servers. "Because of course, how can you hurt yourself without the joys of badly configured servers?".
You can hurt yourself with a badly held butter knife, and you can hurt yourself juggling katanas. Which situation would get people saying you're crazy?
Well, if you narrow down the metaphor to just knives, a dull knife is more dangerous to a chef than a sharp knife, because you need to apply more pressure and you get less control over the cutting action.
Dull knives are dangerous to most people, not just chefs. Most beginner's cooking books/lessons will tell you to keep your knives very sharp, because dull knives are dangerous (for the reasons explained by grandparent comment).
This affects amateurs just as much (if not more) as experienced chefs.
Which of the two, "going serverless" or "managing your own servers" would you say is unequivocally like juggling katanas?
I don't think the analogy is very good, since juggling katanas is always a crazy idea, while choosing whether to go serverless or not is always a respectable discussion.
I understood the pun about the "cutting-edge" cutting you, I just went deeper than the joke to note many hurt themselves by not going serverless when they should have, and that server maintenance/configuration often becomes a mismanaged nightmare.
But on the other, the same sentence could be written about software deployed to traditional servers. "Because of course, how can you hurt yourself without the joys of badly configured servers?".