First in section "Summary" you introduce Fitness, then in section "Expressivity" you call it Semantic Fitness. Here, you give it yet another name - "Representational Bias". The next line, you call it "Semantic fitting".

Using multiple terms for the same notion is a confusing practice. Please choose one variant and stick to it.

Existing Wording:

Fitness (Representational Bias)

Proposed Wording:

?