Say you have a product, say a brick. The brick comes in sizes and quality classes. That makes 2 attributes with 3 options each.
The product has a base sell_price of $1.
-sizes: S (+$0), M (+$0.2), L (+$0.5)
-quality: C (+$0), B (+$0.3), A (+$1)

The combo of size: M + quality: B has an SKU of "MB" etc.

The CSV file you are going to import states just that "MB sells for $2".
Or it states all combinations with their respective prices, it doesn't make a change.

What can you do about it? What will the module do?
I guess you have thought about this stating this module supports attributes. (No offense, please, just searching for a solution)