Probably not intentional. But, the fix can lead to more problems. If it doesn't bother you, just smoke it. I have one with a similar flaw that I find seems to stay more level when I have it clenched to my left side.
But, if it bothers you, you can heat the stem with a dry heat, flame or heat gun, and re-clock it to center. Then either just let it cool, or set it with cold water.
The problem with re-clocking the stem is that it can set off oxidation or cause a rough surface that will require you to sand and polish the stem back. Also, if you don't have a delicate touch and eye, you can have issues that require heating, clocking, re-heating, re-clocking over and over.
It is all up to your own tolerance for things like this.