I certainly don't think it's a bad thing to try to refine the information into a more digestible form. I think, for example, the dedicated "People", "Places", "Events", and "Map" sections are well-organized and interesting[1]. I would simply prefer if the presentation of this information did not detract from the ability to read the diary itself, as it does on the month pages. I am rather fond of reading historical diaries as part of a general curiosity about the past, and reading the experiences as they were written is as interesting to me if not more so than the aggregate information, personally.

[1] Although, of course, there is the question of reliability. For example, the "Boy Scouts" page says Boy Scouts have 2 mentions, but has references to 3 diary entries! Also, on further examination, Sep 1931 has broken dates (meaning my previous theory about it breaking only after Jul 1941 was wrong), and some pages appear to be out of order.