You are assuming some has given them the authority to intervene.
The beta is clearly designed to err on the side of caution. The majority of disengagement's are due to this behavior. You could actually argue that an overly cautious beta is safer than one which is 99% percent reliable because it keeps the driver from becoming complacent.
Until there are actual fsd beta accidents I say let them test their software, the upside of self driving for society is worth it.
You frequently have to enter the other land, cross a yellow line, or turn into a different lane because of double parked cars or construction.
Perhaps this does the opposite, it's so unpredictable that drivers much pay more attention than they normally would and therefore they don't crash :D