Obviously promoting people based on MBTI type is a very bad idea. No discussion. Also the "scientific" value of MBTI - accepted.

But I see one place in business where MBTI still can have its value: each of the four traits describes one area where differences in work style or communication style could lead to tensions.

If a new team is put together knowing the MBTI of the other people in the people to prepare for what kind of tensions one can expect when working together and for each member it becomes easier to adapt oneself.

In this scenario it is not so important whether the MBTI tends to change over time because what it important for this is how your *current* MBTI is.