Generally When This Particular Entry Of The Report Cards Is Mentioned Is To Mention How "accidentally"

Generally when this particular entry of the report cards is mentioned is to mention how "accidentally" what Hinata says about Komaeda smile sounds very romantic even when the meant reading is Hinata being disturbed about Komaeda. While I understand why people would have this opinion, I wanted to briefly explain two reasons why the romanticism of this line is clearly intentional and why the line is not just about Hinata being confused and scared about him.

1. The use and subversion of an already established romantic line

One detail that is often never mentioned when discussing this line is that it is not the only instance where Hinata says something romantically charged about Komaeda's smile and how it's clearly meant to be some sort of callback and subversion of the first line. The first time Hinata says something like that it's used to show how calm Komaeda makes him feel and how much he likes his presence, and now Komaeda's smile is used to represent Hinata's confusion towards him and how all of the things that he used to perceive as well intentioned and kind are now perceived with a malicious intent by Hinata. The purpose of the line is to represent how Hinata's feelings for Komaeda have changed since the first free time event and to tell that even if Hinata is now angered and confused, the initial attraction he felt for him is still there.

It's also worth noting that the similarity between these two lines goes beyond just being about a smile. The structure of both of the sentences is not only similar, but the two smiles are described as carefree. Another detail that makes this scene more similar is that the adjective Hinata uses to say "calms me down" in the Japanese version is magireru (紛れる) while in this context it means to get distracted from your worries, magireru also means to get too absorbed in something or distracted, which is akin to the sensation of "looking at it and not understanding anything" that Hinata describes in the report card, which practically sounds like he gets too distracted and absorbed into his smile.

2. Clarifying the context of the line

When people discuss this line, it is usually only interpreted in a vacuum, hardly even considering the context of the free time event the report card is from. The most common interpretation of this line is that Hinata relates the concept of Komaeda smiling with him talking about his beliefs, so that's why Hinata can not understand a single thing of what he's talking about. This interpretation completely ignores the scene this line was referring to. The line in the report card is clearly referring to this part where Komaeda reassures Hinata with a smile, and Hinata questions the intention behind Komaeda doing this. The line in the report is most likely referring to this interaction since this is the only part of that free time event where Komaeda smiling is mentioned, and for the way it's written, it seems to be an interaction that should be taken into account. This part is clearly not talking about Hinata being disturbed or scared about Komaeda but it is trying to convey the confusion Hinata feels about Komaeda still being kind and friendly with him even when he's supposed to be a terrible person in his eyes.