When I see this system, I can't help but be reminded of Archeage or TERA's crafting system. They got a "stat ressource" they do spend when gathering/crafting which regen over time. Those games beeing free to play, got cash shops obviously, and got those "super convenient" potions which give a boost to this same regen, allowing them to craft or gather more over the same period of time.

A weekly cap is pretty similar to this, as the "script ressource" regen every week. Which brings me to my next thought :

"When do we get red script token to buy in cash shop? It'd have the same effect as those potions in those other games.".

Battle gears beeing worth not much, it wouldn't affect the balance of the game, right? It would only be for glamour purpose, since crafters eventually will just do that. This way, what our dear Yoshida-san said about "cash shop not affecting game balance" wouldn't be a lie. Technically.