Most notably, this a thing I thought of when seeing some of the split up recipes for processes done in chemical plants, where I end up getting some crafting steps in the chemical plant that use no liquids, either input or output, and that felt a little weird.
I won't pretend to know how easy it would be to add an option to have recipe steps like that moved to assemblers, but it could be neat to have an option like that if it is reasonably accomplishable. Being able to specify the machines to move things to as well could be an interesting option.
Alternatively, an option to exclude recipes or recipe categories from being affected could be used to not run into the issue, and would also let a user tweak the experience for them a bit more. Such as only having it on machines and buildings, or only on sciences, or not to mess with chemical plant recipes or the machine added by "mod x", etc.