Two things.
First, he absolutely could disagree with the first bolded. Perhaps he thinks one of these young guys is ready. I don't.
Second, I too agree with a long view, but that has to be balanced out with the present as well. To me in a draft like this, the asset use to get your pick of the litter is a bad use.
I don't think anyone can be sure that anyone of the top d available are going to be better than the next. It's entirely possible that Liljegren or Brannstrom becomes the best guy in the draft.
We all have our favorites, but with that understanding, I personally would rather gamble on my selection at 8, plus whatever defender Kane can return vs one gamble with the puck at 3. I think that limits your risk and gives you help now and long term.
This is all in the dark to some degree. If Botterill knows today that he is looking at a terrible return for Kane. Like far worse than most on this board have speculated, so say a gorges type, then ya if Kane is that valueless, sure throw him in.
Makar and Heiskanen are elite prospects. The rest are not.