It's true that there are methods it could be added. If FromSoft comes up with an ingenious method for making an easier mode to one of their games, then that would be really cool.
However, Dark Souls games are built for a singular difficulty experience. My argument is that other modes just aren't necessary, as the game gives plenty of options for the players who are willing to find them.
So you'd rather have me glitch my way to infinite souls rather than just tone down the experience for players who want to enjoy it?
Demon Souls I glitched
Dark Souls 1 I glitched
Dark Souls 3 I glitched
All 3 of those I completed with an insane amount of joy and had a shit load of fun and all 3 probably wouldn't have been completed had i not been able to glitch.
But somehow......they effect other players experience personally even if they dont opt in.