Isn't "land reform" just a euphemism though? Whereas there is an intrinsic value to stable property laws, there is always a competing trend toward changing the rules of ownership after the fact, in order to optimize for a specific outcome.
For example, abolishing serfdom made your land less valuable if there were no longer people that belonged to it. Or, confiscating monasteries and abbeys, then gifting them to favored nobles is a form of land reform. Similarly creating the conditions that the large manors dissolved later is another form of land reform.
In California, you can look at the title histories that trace back to large ranchos from the Mexican period and before, and look at how ownership changed hands. Most owners were legally entitled to retain ownership, but any number of tricks were used to get them to lose their claims.
The same goes for changes in ownership of water rights, mineral rights, air rights, or new limitations on what types of commercial activity are permitted.
The measures can be beneficial or not, but it seems extremely common for changes in public policy to alter property rights.