Compare that to journalism (news reporting). Those facts are in common flux, and nowadays get journaled in detail which does the very same as death of a (known) human. If you look through the list, a lot of the most edited articles are news. In an encyclopedia!
I'd argue news is, in essence, assimilation; Wikipedia even more so. Some things which are in full momentum, like a new startup, are technically news as well. Yet you won't find that on Wikipedia since it isn't part of establishment! It is still too much in motion, but later on you may actually very well see it part of an entry if the startup got bought. Which is, quite obviously, assimilation.
Like I said earlier, death is akin to assimilation in biology. Heck, death is the way a human assimilates.
In the first 3 months of 2016 famous people died at 2x the rate of previous years. Since then there has been a normal rate of famous person death.
"Quantity of famous people dying" is measured using BBC obituary count (which they admit as in imperfect measure).