It might still be worth getting under there and checking if it is as low as it can go inside the hub. From the looks of it, they should be flush with the bottom of the cup.
Also be aware by design the Bilsteins will have as much as couple hundred lbs offset force at each corner from the high pressure gas monotube design. So they will always sit a bit higher than a twintube like the konis. The Bilsteins have a tendency to trap air inside the strut tube as well so you may see a lot of settling from that farting out past the seals over time. This latter issue is only on the fronts.
edit: The other thing I hate to ask is did your shop install bump stops on the front? Because they don't need to, they are internal on the Bilsteins. See this pic: