I do think that it is an important factor, how the coins are distributed among the holders. I mean most crypto projects claim to be decentralized but if a lot of coins or even the majority like in your example are in the hands of only few dozens of people for example then i would say that projects is pretty centralized and those few holders can basically control everything that happens with this projects. They can kill the price of it if they decide to sell off their holdings, if there is some kind of staking available for this project then the gap between them and the other holders will only become bigger and if there is also some sort of governance function implemented in the token then they can also completely dictate the course of the project.