You can read there if reduction token won't affect with NPXS price. Total supply would be 258million token, but it also will change on people's token on their wallet, so if they have bought 1million token before, it will be only 1000 token after reduction done.
You missed the logic, if 1000 token price is 1$ at that time, after the reduction price of a token is 1$ isnt it?
The NPXS price changed, but the holder wealth didnt. If the topic here is NPXS price, thats the solution behind the huge total supply.