DBD does not favor any one type of shot. It rewards good shots and punishes bad shots, and success can be had with a huge number of different shots, as long as they are well-executed. It has multiple two-or-three-shot, links-style holes. Even Blue Mtn. is pretty much a par 3 course and can't compete.
The Wreckreator is a good course for a par-3 course, somewhere in between a tournament course and a recreational course, and suitable for use in a tournament to provide some variety. I can understand wanting to include this course in a two-day tournament, where twice-through the "big" course in one day is less preferable for other reasons besides variety as well...time constraints, overkill effort-wise to force people to go twice through DBD, etc. If the Farragut Open was one notch bigger--say, an A-Tier--there'd be a good argument to scrap the Wreckreator AND the North Star, and to go with some configuration of SBD and DBD for all rounds. It's not like the DBD is all that strenuous; it's flat and is not a par 68 or anything.
The Northstar, on the other hand, is a recreational course, not a tournament course, for open players. Plain and simple. The length and high-percentage shot selections are not appropriate for serious tournament play, besides casual, local-fundraiser type tournaments. It hugely favors certain types of shots (overhands) and is thus poorly designed, IMO, from a competitive standpoint. And I frankly agree that ability to throw good, 300' overhands is 5% skill and 95% rotator cuff strength. Lest you think I have sour grapes because the DBD gives me some advantage while the NS evens things out, the Northstar has always only HELPED me out, score-wise--but any course you can shoot a 42 on, throwing 14 thumbers off the tee, is a recreational course.
http://www.pdga.com/tournament_results/13490/Open
I sure would like to play a Superclass event on the North Star, though!
So, in sum, my opinion is that for open players, at least, it would be a really questionable decision to use the north star course in Farragut's big annual tournament. There is no way that any added OB or anything like that would change the overall character of the course. Kind of like how with Zoo Town, we don't use the white tees anymore because if people are coming to play the course once a year, they deserve to play the best the area has to offer, and it is cutting that in HALF to add the white tees in a subtract a blue tees round. Plus, there's no concern over forcing am or age-protected divisions to play a bunch of DBD, if they don't want to--NS is still available and could be used for lower-rated divisions, as the PDGA suggests (match course SSA to avg ratings of div. playing it, as a general rule...thus "blue level courses," "gold level courses," etc...
http://www.pdga.com/course-design-validation) So, easy to avoid concerns over players unhappy about being forced through the tough course twice...they won't be. I would seriously doubt that any open players would be unhappy about playing DBD twice...it's the main attraction!
That said, I will be happy to make the trek over to play the DBD even if it is only once, and if it is just impossible logistically, then I do support favoring the needs of ams over pros in order to grow the sport. Obviously Farragut is a glorious location and that is a huge draw as well. But I certainly wouldn't be driving 6 hours to play the Wreckreator and the North Star, even with the lakeside view. I personally don't think there's a better permanent course for tournament golf in WA, ID, or MT than the DBD. Here's hoping.