Agreed it could be a nice addition to have better visibility of the title on longer drafts.
That said, I might suggest some workflow modifications that might make your life easier. Drafts tries to be optimized around capturing easily and quickly, and then filing. If you created a few actions that appended the content of the current draft to your other target drafts, you could simply capture your dictations and process them out of the inbox with those actions – without having to find the draft to append to.
This is similar to the workflow discussed in the Add to List article.