I'm pretty sure the Hino and Lucchini contracts were 2-way. Blankenburg got a 1-way in the 2nd year, which is probably the carrot needed to get him since he's pretty good.
Note the CapFriendly hasn't updated all the terms of a lot of contracts, so they often initially put them in with full salary at the AHL level before confirming details. And now who knows if they ever will, given the sale.
Which reminds me... we talk about needing another RD if we dump Fabbro... well, Blankenburg is probably good enough to fill in that spot too. We don't ideally want a small guy like him, but he's a pretty good player and has that NHL tweener fill-in ability.