Based on my experience some cracks are inevitable but if you still have a chance to make it right I would. It's very difficult to keep cracks for leaking for a long period of time. Another thing I would check is to make sure they fill the rod holes correctly. My basement wasn't done right and over a period of 10 years just about everyone of them has leaked and needed repair. My builder only put about 1" of mortar in the hole, it should be almost completely filled to prevent this.