I found that simply reversing my featherboard makes it function very well as a thin ripping jig to make repeated (thin) cuts on the non-fence side of the blade. The featherboard's hard side is simply set at the appropriate distance from the blade on the side opposite the fence. Then the fence is moved to support the larger "offcut" side as with a typical thin ripping jig, and you can make the cuts with push sticks as usual.
Yeah, I think if you're going to do a lot of thin strips, a jig is worthwhile (and that seems like a nice method). I liked just using the featherboard because it worked (surprisingly) well, felt safe, took a matter of seconds to set up, and doesn't require me storing a jig (I'm tight on garage space).
Like I said, I do really like your method. It's a great variation on some other thin strip jigs, and it seems really safe and easy to use.