I am aware of what they were going for, needless to say it is a flawed premise, a quick browse through the AR15's history will show you several flaws in the design that came about after the design started gaining traction.I though about posting this long, detailed description of what all that parts were and what they did, but honestly I feel that would just be a waste of my time and yours. I'll keep it simple. The purpose of WWSD is to build the AR in a way that is true to Stoner's vision of it. It's not just a lightweight gun, though that is a major feature of it. It's above all, a practical one. As practical as possible. Each part was tested against others, and then chosen for the build. Every ounce on the gun is justified, and anything that is not practical is left off. The gun is not just a mass of parts, it's a culmination of those parts working towards a specific set of goals.
If you are truly interested in what it is and what it's purpose is, here is the InRange playlist for the WWSD builds. The first 15 videos are for the 2017 build. The rest are for the ongoing 2020 build.
You cannot say "stoner would do this if he were alive" when all you have is a collection of parts that would not exist without the story of the AR15 happening as it did, warts and all
Eugene stoner was an engineer, and quite a good one, he wouldn't build an AR15. You'd most likely see a slightly larger reciever/bolt, slightly larger magazine, amongst other changes
There is no two ways about it, all the WWSD thing is, is a lightweight build with some cult of personality stuff backing it up. There is no black magic that makes it more than a sum of it parts.
I see lots of AR15's, from KAC's, LaRue, DD, BCM, VLTOR, LMT, WWSD. They are all just the sums of their parts