Earlier quoted context omitted.
I'm not the person who mentioned QS but I'm still using it too. For me it's mostly inertia: Alfred can probably do everything I use QS for, but QS still works just fine, so why bother? When something breaks the 10% or so of QS's capabilities that I actually use beyond fixing, then I'll switch. ("Probably": last I tried using Alfred a few years ago, I think there was something I relied on QS to do that Alfred couldn't…
QS was seriously broken for a long time. I understand someone else finally picked it up and started fixing the bugs, but I don't know why anyone actually kept with QS during the long broken period. Even back when QS was under active development by the original author, it was still pretty buggy. I actually had a separate keyboard shortcuts app running in the background with a single shortcut which would relaunch QS fo…
Alfred didn't have that basic structure when I tried it. I'm sure it's quite powerful, probably more so than QS given the latter's long stagnation. But I never bothered to figure out how to use Alfred effectively because QS is so easy and works great. There were a couple of bugs that were annoying for a while, but they've been fixed.
Kakoune doesn't mention the "indirect object" part of the grammar, but apparently it'll prompt for more information when needed, so it's pretty close.