The problem with the burner chargers was that they were inflexible. The wall plug couldn't be changed for other countries, and there was no USB A between the wall wart and the cable so I couldn't use it to charge all of my other gadgets.
It is? Only in some abstract sense. They all already have a cable that plugs into USB A. I'm supposed to throw them all away to move to a new standard interface in a different place?