Stretching it.
It could have had a ceremonial function of keeping out malign forces or keeping benevolent ones inside or even vice versa.
The wya they stretch this stuff would put a political spinmeister to shame.
Naturally, anything not understood is said to have a ceremonial purpose. :’( Right now this newly discovered pallisade is said to be insufficient for defense. Maybe the ancient Britons are the real inventors of baseball, and eventually preserved chunks of the wall will be discovered, buried, complete with peekholes. ;’)
Lately it’s been as if no one had ever studied the environs, perhaps because no one had. There’s a topic around here (at least one) regarding the pretty recent claim that the site was *not* used for the dead, but was a place for healing, specifically for eyes and vision. That was difficult to explain, because remains had already been found. Then, more and more remains were found, spanning a couple of thousand years. As noted, the “Amesbury Archer” had come from (I think) the Alps, in Europe proper.