Beside...
When you look at how much comp you get with the favor/script in one week compare to the red script stuff
You can see how much worth it is

Like... one week of red script allow you to craft more or less 6 to 7 piece ilevel 170 (depending of which comp you need)
When red script stuff is 1 little piece for a week or 2 for a big one

And to be honest if you aim for all accessories it take 3 day top to have them all starting from nothing.

Like finasel said usually you get normal comp naturally when doing other thing (either favor, aethersand or maps)