Not quite that far, but to a degree, you're on track with how I approach my own images. Titles are useful references, after all. However, when the message is not communicated without the title, you've entered the continuum of "text plus image" that goes all the way to "illustrated textbook". Where on that continuum a work is depends on the degree to which communication of its message depends on the accompanying text.
I tried not giving things a title here and got criticized for that too haha, guess I'll never win