Well, that's right, but there is (in my opinion) no way to check all books for this.
If you have one (say a little known comic (all pictures)) book with swapped author / title without isbn, you can not find metadata for it.
So, you will never know if the info is swapped if you do not read it yourself.
The only way to solve some of the problems in your lib is to find books that have duplicates in it with swapped author/title.
It can not solve all your problems (like none of your plugins can (their still great
)) but it will solve some.
While it is a multi-book operation and an operation to find possible duplicates, it should be in this plugin I think.
Properly (=complete) solving this problem is no option.