That's probably a factory weld and I won't comment further on welding as my skills fall into the range of "I can melt metal and most of the time is stays together". As for the alignment of the ears, there should be as close to an absolute straight line between all four slotted holes.

My first welding job was on upper control arm mounts on an early A-body due to them not being in a straight line from an accident. I cut the weld, pushed it back into place with a porta-power and welded it back together.