I rode part of it this past summer. The biggest gripe were landowners and their chained gates, every 500m. There were many slides and washouts which nobody was going to repair. Every single sign I have seen said "no motor vehicle allowed", but I met a uniform policemen on the track who said nothing.
I, personally, will vote to close it to all motor vehicles due to evident erosion and degradation, unless extensive repair and maintenance are scheduled.
And I will not go there for 2d time because of the farmers' barricades.