Sub-themes of sub-theme generation issues

I have a sub theme of stable9 that I created with starterkit with the intention of using it as a base theme. I'm running into a few things when trying to generate this sub-sub-theme that I'm unclear on whether they count as bugs or features I'm not using right. Basically the 3 problems I have are:

1. Generated theme's info file includes "starterkit: true". There's already another issue for this though. 🐛 Theme's generated from starter kit need to remove "starterkit: true" Needs work
2. Generated theme's info file says the base theme is stable9. Shouldn't it use the theme I specified as a base theme here instead? That's what I would expect based on this: https://www.drupal.org/docs/theming-drupal/creating-sub-themes#s-sub-the... →
3. It copied over the .git directory from my sub-theme. Perhaps this is intended behavior?
4. Templates in the config directories didn't get renamed with new theme name.

This was my command for generating the subsubtheme in case I did that wrong:
php core/scripts/drupal generate-theme --starterkit my_base_theme my_new_theme --path themes/custom