Something tells me you'd never have him at 6th.
If you trust your scouts enough to have him at 6th, I think you take him. Picked five random drafts, 04-08, and getting a top6 forward or top4D wasn't exactly a sure thing in that group of spots of 6-10. Outside of an abnormally deep draft, I'm not sure you're rolling the dice much more that the pick works out.
I also think how GMs view drafting goalies is slowly shifting. It seems that what used to be a thing where you blew a 4th or 5th rounder on one every year to see if they pan out has become something where the top goalie talent in a draft is gone in the third. You're right that this is only a discussion now because we've also seen some freakish talents the past few years, but if we want to really go after a goalie I think we're going to have to get comfortable with spending some more serious capital than a mid-late rounder.
For what it's worth, I would have a hard time going Wallstedt at 6th, too. I think he's likely to be the guy with the highest ceiling there, though, and the most likely guy to over play his draft slot. Considering how we're not winning the draft lotto pretty consistently taking that homerun swing becomes a bit more appealing for me. I
really wish we had a spot in that 11-15 area, as that would be my sweet spot for grabbing him.