Army squad tests new basic training at Fort Sill

Question. What happens to soldiers who "fail" at something the Army is "testing"? Like this for example. They are "testing " it in basic training. If the new entry fails, are they released or pushed forward bc it's a testing phase? If they are released and then the Army says "nope, this doesn't work " do they get to come back/return? If they fail and are pushed forward and the Army says "this is great" do we now have a bunch of failures in the ranks? My question applies mainly to new entry soldiers still in initial training.

Geez! I wish my Marine Corps could have something like this!!

I see what they're trying to do, getting more to the more useful parts of training. But frankly BCT in general has little resemblance to its WWI&II origins. Back then upon enlisting you'd be in training within a week were in training at a crowded, understaffed, and near unsanitary camp.

Nowadays BCT entails major delays in getting in a slot, hefty pseudo-prison like security measures, a whole lot of waiting around, and a lot of long antiquated marching just so a bunch of boxes can be checked on a certificate. All along there is nothing at BCT that cannot and does not get taught at regular units.

I know some people will hate me for saying that BCT as we know it is obsolete, but can't we condense it into an intense week long formal hazing when you arrive at your first unit?