Classification of Hollander's personality and its limitations? The categorization is already clear, but I'm looking for an explanation of its limitations.

The "personality type theory" created by Hollander, an American career counselor, in the 1960s was developed on the basis of the trait-factor theory. This theory is derived from the concept of personality psychology, that occupational choice as a reflection and extension of individual personality, on the other hand, it is derived from Hollander's own career counseling experience, after a lot of research to form a set of systematic career guidance model. The core content of Hollander's personality type theory includes four basic concepts: 1) In contemporary culture, most people's personalities can be distinguished into six types: realistic, research-oriented, artistic, social, entrepreneurial, and traditional; each specific type of personality will be interested in the work or study of the corresponding occupational type; 2) In contemporary society, occupational environments, like personalities, can be distinguished into six types: realistic, research-oriented, artistic, social, entrepreneurial, and traditional; 2) In contemporary society, occupational environments can be distinguished into six types: realistic, research-oriented, artistic, social, entrepreneurial, and traditional. Realistic, research, artistic, social, entrepreneurial, and traditional3) Generally speaking, people always look for occupational environments that can make use of their knowledge, abilities, and skills, as well as demonstrate their attitudes and values, and that are suitable for them4) Individual behavior depends on the interaction between personality and environmental traits.