Hi,
One thing that I think would make Alfred better is if you could batch import workflows. When you try to do it now, it just takes the first one, asks you about wether you want to import, imports it, and ignores all the others. What you could do is whenever one tries to import multiple workflows or themes, have multiple prompts going through the list of themes/workflows that were opened, letting you accept or deny. Even better yet, you could have a checkbox, "do the same for the rest of the selection" that would function something like this:
But instead of replacing or note replacing a file, it would install or deny a workflow/theme. You could also have an option that would always accept amy theme or workflow that was opened.