Yea the "optimal" solution shown by the default input is pretty silly. You're giving everyone 5 chips with which they can post blinds, and they're going to use 3 of them per turn through the blinds, so after 1 turn through the blinds someone who has won no hands will need to make change with someone else. And making change from the next smallest denomination will require 5 of that persons small chips!
Other, less important usability consideration is that you would typically want "round" amounts of chips, ideally stacks of 10 or 20, though having a few big chips in odd amounts is fine. Not as big a deal, but again, very much diverging from typical poker ux expectations.
Neat project technically, but highly impractical for actually playing poker.
edit: to be fair, just saw the advanced options, which would allow it to produce a more useful result, so that's cool. maybe just update the defaults :)