Thoughts about and problems with session concept about draftmancer HOT 1 CLOSED

Adding to the "empty string" sessions are allowed problem:

Looks like playing in such a session throws an error when trying to access the bracket link.
https://mtgadraft.herokuapp.com/bracket?session=

Edit:
Looks like I'm also not the only one who did not understand the idea behind it right away... probably not so intuitive as you might think. :)
While tinkering with a Sealed pool during an event at Arena (the deck builder there is awful, thankfully there are alternatives like mtgadraft!), quite some people thought the same and went for the obvious "empty" session ID instead thinking of a most likely unique one to be on their own for playing around with an imported card list (a quite niche feature, but still so many people crushed into each other):

Edit2:

from draftmancer.