The design is fine. Perfectly normal in fact. Stock up your assets with multiple years of high and excess draft picks. Then go from there. There is no other design that is as efficient or reasonably likely to result in a future period of contention than this.
The execution will remain to be determined. If you think the "design" is poor though, then I think you just don't pay attention to the NHL on a macro-scale. Look at PCA, a Red Wing fan that was bragging about how Yzerman got Seider when Bowman passed him up for Dach. Now he's out here worrying and acting like Bowman had the team on track for contention with a bunch of players that would all on UFA contracts in present day and weren't even close to competing when they were all here. You can tell he's getting nervous, his boy Yzerman who he was gushing about for drafting Seider looks like he may have flubbed it up by taking the Wings out of their tank too soon and putting a cap on their level of prospects when they still need multiple guys to come through and their 1C continues to Age. And then over here, if the Hawks go for the tank again and do actually get McKenna (unlike Bedard, he would get to come in at the end of the tank period when the Hawks have a stacked prospect/ELC player pool) then they are probably the team best situated to run the "next generation" of NHL when the teams like Florida/Edmonton/Vegas/Colorado/Tampa have all fully run their course back down the standings. And even if it's not McKenna specifically but someone else that is still very good, the Hawks will be in a very good spot.
Sure bad things can happen, the draft picks can bust, the one that don't bust may not peak as high as people would like, the Hawks can mismanage the D and end up sending the wrong ones out the door, they could sign the wrong UFA that messes up the cap. A lot can go wrong, and at the end of the day, there's 1 winner and 31 losers, but the Hawks are on a very shortlist to be a very strong contending team into the 2030s the way it's all shaping up.