I dunno; I don't think anyone follows "rule of thirds" slavishly, do they? Do people really enable the grid and then put stuff at the crosspoints? I just kind of make sure that stuff looks right and has some dynamic, and if it is unbalanced it is for a reason. If you do that first, then enable the grid, you'll notice that you're usually sort of close to whatever rules have been postulated, be they thirds, diagonal, or golden.
I still remember being taught how to write a research paper, in 9th grade (1969). We were taught how to write an outline, we were taught how to write an introductory paragraph that outlined the theme, we were taught how to organize the following paragraphs so that they supported the theme, and we were taught how to summarize and conclude the paper. And that was good; it gave our work continuity, it kept our ideas from being strewn all over the page without any unity of purpose. On the other hand, there is no room for creativity within that structure; there is no personal style nor personal expression permitted within that framework.
The simple guides exist as primers for students, not as rules for mature writers and photographers. As a writer and photographer, I want to make my work interesting and expressive. I'm not an artist, I'm not a professional, but I'm trying to communicate when I write and when I shoot, and even on an ephemeral scale I take pride in crafting what I do. And in crafting what I do, I don't forget the rules... but I don't devote myself to them either. I trust that I've learned them, and I trust that I know what I'm doing when I don't follow them.