Normally I'd agree, but ffmpeg is a bit of a special case: thanks to its extremely large set of options it has a rather high number of pitfalls: flags that do s

Normally I'd agree, but ffmpeg is a bit of a special case: thanks to its extremely large set of options it has a rather high number of pitfalls: flags that do subtly to wildly different things depending on where they are placed relative to other arguments, for example. Complex filter graphs are pretty gnarly on their own, being a string-based sublanguage all crammed into one argument... it's not totally unreasonable to reach for something just to tame that particular beast. If this gets you halfway-workable tab completion for the various options of things it's worth it for that alone, vs. diving through the big long page that otherwise contains all the names and orders of arguments to filters.