Sorry for the delay with some comment. It took some time to study the whole work. From the scientific and mathematical part E–stablecoin has a lot of potential but as it is a pure scientific work it has no way to come to life unless in the hand s of scientists.
The most disadvantaging point is “Note that the stablecoin concept proposed in this work has not yet been implemented.” And then the author talks of coming years. Nobody knows what will be in 5 years.
The second week point is the absence of practical mode: it is extremely difficult to list the new coin on the regulated exchange and as the E- stablecoin is not the ERC-20 it wont be possible to trade on Uniswap.