It's not an interesting analysis at all. He is only looking at how many coins different levels of wallets hold, and then just assume these belong to whales, which isn't the case. A lot of these wallets belong to exchanges, gambling sites, wallet services, etc. It's impossible to point at a certain wallet containing a large number of coins and say it belongs to a whale. I have seen an article recently pointing at how many coins are lost, where they consider coins to be lost if they haven't been moving for a longer period of time, which is just stupid -- someone not moving his coins for 3 years doesn't mean they are lost. I know people here aren't all that knowledgeable, but they aren't stupid either....
For anyone interested, here is a Bitcoin rich list. https://bitinfocharts.com/top-100-richest-bitcoin-addresses.html