I'm curious about some publications mentioning that "only 2% of the addresses holds 1 Bitcoin or more".
I found this to be quite surprising, since I always supposed longtime hodlers to be the larger segment of the Bitcoin ecosystem and not just a small fraction.
I have no idea about the number of bitcoin addresses in existence and there are wallet where hundreds and thousands of coins are held and many use and throw the wallets they used in the public to safe guard their privacy and even if your statement is true, the long term holders will be holding their coins in offline wallets and they will be having huge amount of coins especially early adopters.