Why does Huntsville walmart not have grocery pickup for all items?

Simply put, Huntsville just isn't a big market like Springdale, Fayetteville and Rogers.

I feel like hutsville moves alot slower then all other cities do and it also might be contributing the fact that the parking lot is just too small and they have to make it alot bigger. Kinda like how sonic had to by the land that reddy ice was on and rebuild sonic just to have a drive through. This is just my guess though