No, still no defence or explanation of the claim that ''Everything in the universe could have a cause but the universe doesn't need a cause'' .
Not that I've actually seen this claim being made, but FYI, it's actually trivially easy to defend because causality concerns the relationships between
events (i.e. the equivalent of a point in space, generalised to space-time)
within space-time, so asking for a cause of space-time itself is pretty nonsensical.
This is actually pretty basic modern physics.