That's because it is. It kept brushing certain things under the rug. For example, the no-profit section. I get what it's saying, that each Liver usually do personal projects, but the company is still expected to contribute in terms of the documentation and permissions. Instead, the narrative started off by supporting Selen's endeavors and then veers the topic into looking at the thought of "Selen gained 200,000 dollars" and acting as if it's an achievement of the company, nevermind that she shouldn't have had to use it all for personal projects that never even get off because of KuroEN not streamlining the bureaucracy. There wasn't even any mention of the lacking permission and documentation support at all. Hell, during the "What is the truth?" section, it didn't mention that the Coffee MV was already approved by the respective parties. Every single one of the 'truth' stated is mostly neutral on NijiEN or specifically targeting Selen's character. Another flag was the "Important note", they kept acting as if they don't truly blame it on Selen's BPD but it doesn't even factor that those with said condition can still retain their wits; why else would they be a reasonable person to a lot of people and negotiations otherwise? Also, there is way too many walkback statements like "Now I know they don't etc.", "Of course, they don't really mean etc." and stuff along those lines, really give the impression of trying to look reasonable and lowering the impact of said statements.
TL; DR it's way too specifically structured to look neutral by lowering impact of the negatives, therefore it's "unbiased" and "fair".
EDIT:
If you really want a neutral documentation, it needs actual acknowledgement on all fucking problems, even on Selen's side. This is definitely not it because of the structure of subject, lacking context, and elements, plus the whole constant walkbacks whenever talking about Selen's statements.
Actually, the more I look at it, it's absolutely fucking biased. There are way too many attacks on Selen's character. The walkbacks can be forgiven if they even actually emphasize a good point for Selen, but they are all emphasizing KuroSanji's work as positive. Treat this document like trash, too biased and likely a NijiSister.