Isn't inbox just an item to hold newly added files? What actions could there be in the wizard, that are not already in preferences?
The main reason for creating an Inbox Wizard is not to add new actions but simplify the process of using Inbox. Just use a 'Search' feature on the forum to make sure how many users don't understand how to deal with newly added tracks and albums. They keep posting very similar questions such as how to move tracks from Inbox to Library, what is Inbox for etc.
Those who don't need a Wizard could skip it or disable permanently, but it could advice what actions to perform step by step for new users.
When Inbox is selected a Wizard appears and suggest to run:
1) A Duplicate Manager (I have many duplicated in Inbox and always perform this action first);
2) then 'Tag Manager' could start:
a) show files with missing tags and update (auto-tag) them;
b) show files with missing artwork and update them
c) show files with small artwork and suggest to find a better one;
d) show files with missing lyrics and update;
e) show files with inconsistent tags;
f) adjust volume with the analyzer;
3) then File Organizer could start and perform what it is made for;
4) then Format Converter...
As you can see there is no new actions here.