I get it. It's all about giving Bedard the best possible start for the best possible career for them. Guys like Foligno and Perry will be right up in the face of anyone who wants to mess with Bedard, and they'll give him a ton of veteran advice too. They'll also be pretty chill and good about the fact that they're on a team designed to be bad, and keep others chill about it too.
And then because they're one year contracts, Chicago can start building for serious next year if they want.
Besides, it's not like they still can't take a bunch of bad contracts if they want, particularly on LD. And they've already got 28 picks over the next three drafts, including 5 1st rounders and 8 2nd rounders. More is always nice but diminishing returns here.
edit: And in any case, the desire to dump Granlund and Petry aside, the more teams who want to take themselves out of helping the cap strugglers, the happier I am. Bring Toews back for 1 x 10m while they're at it.