The only incorrect typing is from
(a) one not studying the etymologies of the words used to categorize themselves
(b) one not opening to newer and better perspectives of typing, ie. one staying with a primitive view.
From there, it's all fair game.
The funny thing is how true this is. For instance, with (b) I see individuals continue to type via the nonsensical view that Fi is self-centered values while Te is lack of own thinking, rendering their perspective of Ti-Fe superior but not realizing how inherently wrong their system is. Oft times we need to
re-understand typology before we can understand typology. I personally pose a variety of perspectives for understanding humans, and then choose the most practical and useful perspective. This is called evolution. It is how we have computers, cars, and democracy. We willingly or unwillingly, change and improve our tools.
Here's one more example. They call F values when every human on planet Earth has that as their primary function. We'd all put our inherent values first before anything else. Jung is only a stepping stone, my newsflash for you is, MBTI has already
moved beyond that. Let's continue solving the puzzle but being open-minded.