Actually, concerning the "Week" Square, I think it's a really common mistake from Engrish.
In Japanese, week and weak can be heard with quite the same pronounciation (If you notice, the hiragana for week and weak is actually ウィーク so... I guess the animators/scripter read the term with hiragana?
)
Personally, I would leave it be as it's not really a terrible mistake... Errr, technically, not too terrible misconception...
I think. Or maybe that's me after hearing Persona 3&4 OP lyrics and laugh over how the Engrish in some sites are really fun lol