I see a valid point here, however, some court rulings create binding precedents. As I understand it, those can be paywalled in PACER. Binding precedents are part of the law everyone within the relevant jurisdiction is required to obey, and it is unjust for any part of the law to not be freely available.
It may be reasonable to put limits on free public access to records where there's a privacy concern.
At least within the federal court system, binding precedent is already freely available. Only circuit courts and SCOTUS can create binding precedent, and the opinions of those courts are freely available on their respective sites, outside of PACER. E.g., here's the 9th circuit: https://www.ca9.uscourts.gov/decisions/opinions/