Moreover if you have more of one caddy server deployed it handles TLS certification management in a shared environment, this thing it is not available in the Traefik open source edition (just with the enterprise solution).
You get downvoted but my first thought was similar, I wasn't sure the author was being sarcastic or not, although for a slightly different reason: the whole process, if done more properly, has a few more steps (and of course even more for production) - but on the other hand it might be interesting for someone to know you can skip some and start a smallish app a bit quicker although I'm not a fan of such hacks.