Yea one of the flaws of traditional safety wire twisting tools is their size and inability to get into really tight spaces. The solution in the article still seems too big. I'd buy something like it but only if it was the size of a small ratchet.
Yeah it's hard to depict when there's no existing examples, I was imagining it should be something as small as a pair of side cutters or small pliers. I tried ChatGPT image generation and it failed miserably haha.