Charlie, "you can".
The issue is I figured out EZstuff in a matter of hours, this is not the case with BIAB.
When you know the program inside out, which took you years, it's easy to fall under the spell that everyone should follow same steps. Software in recent years became much more intuitive, and people expect similar workflow across different titles.
OP title reads: "My only wish is to make Band in a Box easier to use."
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To PGM defense, it seems they are making progress on non-modal approach for Library and tools. They need one good update focusing on making GUI fully modular, where users can create their own "panels". Better sorted and worded menus. And of course change some graphics within those "panels" reflect more modern themes. Content is there, function is there, render / regeneration speed since 2024 is amazing. Perfect time to improve on ease of workflow & design.
That's also reflected in my statements a while back that people who've used a product for a long time learn to not do the things that cause problems newcomers.
Continuing to progress non-modal dialogs is good. Dockable and/or pinable/hideable panels would be a good progress further.
Some of those kinds of change fit into the class "By choice, I wouldn't start from here".