This is not a revelation and it is indeed a flaw. If you only want to appeal to math-oriented investors who think things through in that manner, then you are okay, but you won't appeal to investors who look at a price chart, see a declining trend and stop there.
Is this a fatal flaw? I don't know. In competitive markets small differences can lead to winner-take-all outcomes. A similar design that doesn't repulse less-math-oriented investors (and is neutral for math-oriented-investors) might do better. The higher cost of capital that results from narrowing the investor market is a disadvantage (likewise for cutting out medium-term investors as iamnotback has stated many times).
While I think changes will be coming at some point, to tune the economy, I also think that the rule which says "Simplicity is key" will again be overlooked. What they are trying to do is admittedly complex and trying to make it work while also making it simple (-if it's even a goal-) is not an easy task. However it's what will be required of them and whether they are up to it or not, may decide -in large part- the degree of success the platform has. As you say, small things can make a difference.
That's because these platforms are all complete failures in terms of adoption and use (doge maybe wasn't for a while, but it is now). So it becomes an empty shell that exists only for speculation purposes. As such it is worth more to a large holders who can manipulate the price than to small holders who can not (at least as long as foolish small investors are willing to keep funneling in outside money and losing it by being manipulated).
In a platform that were actually used for something, there would be degree of wealth concentration, as you say exists in everything, but it wouldn't parallel most useless altcoins.
I was wondering what BTC does and googled it... If the link's data is accurate, I think RL wealth concentration affects even bitcoin to a very large degree.
https://bitinfocharts.com/top-100-richest-bitcoin-addresses.html
~20% of BTC marketcap is in addresses with >10k+>100k coins.
~22% of the marketcap is in addresses with >1k coins.
~23% of the marketcap is in addresses with >100 coins
~26% of the marketcap is in addresses with >10 coins
So 100+ coin addresses get 64% of the total distribution and 10+ coins addresses get 91% of the total distribution. I was kind of expecting it, but I wasn't really expecting that the addresses would be so consolidated. I thought there would be a larger degree of obfuscation with people using more addresses.