Calling "being able to detach and reattach one cable" (assuming that the external power supply you're planning to use can actually handle the power and data transfer job you're asking of it, so really this is a capability which just isn't going to work some-to-much of the time) a "breath of fresh air" is pretty seriously overstating things.
Especially when you're going to have a hard time powering a powerful small machine... 120->240W doesn't provide a lot of grunt.
My RPI is powered via USB-C but if it's the wrong cable or the wrong power source then it's useless; the device will boot and then restart immediately
Pretty useless standard if the specs can vary so much
On the one hand, if you plug in a power adapter that doesn't provide enough power to most anything, the powered device will malfunction.
On the other hand, it's often the case with high-powered devices that power adapters that won't provide enough power simply won't fit in the receptacles of devices that need more power.
(On the OTHER other hand, it's very rare [0] that a power adapter will ship with a cable that isn't rated for the load that the adapter is rated for.)
[0] Well, unless you're buying drop-shipped trash from Amazon... but in that case, the whole damn assembly is probably a serious fire and/or electrocution hazard.
I am not concerned with durability of the port. My experience with one of many usb port suited for high power delivery has been uneventful. I know my devices well enough.
The only drawback is insufficient power delivery from docks. It’s only necessary to me that it works with less power.