That is correct.
For instance, on contracts I've inherited we had the data rights clauses but we had no CDRLs therefore we had no vehicle or grounds to actually get the data which we should have been getting since day one. My Program Office didn't even have a data manager.
Even though we had some grounds to get the data, i.e. the 252.227-7027/28 clauses, pursuing the actual furnishing of that data was next to impossible unless we bring them to court which our legal folks had no stomach for.
At AT&L I saw that AF and all of the services, are by law, supposed to do majority of the "organic" maintenance but the Government failed to get the data to perform the maintenance in-house.
When asked to price an option CLIN for that TDP for maintenance, not even for a competition mind you, it was well over a billion dollars if they responded at all. Now bear in mind this same data is free for commercial planes under FAA regs, alas DOD is exempt for FAA regs...
In reality our own military is a subcontractor to the beltway bandit for O&M which offers tremendous cash flow, profit, and sustained revenue for those prime contractors for the remainder of that plane's life. Most 1102s and AT&L appear to have no clue things basic data rights like Form, Fit, Function and OMIT data is inherently unlimited and even if they are somewhat aware they and their programs don't have the stomach to fight the good fight, especially when we have the rights and legal processes in place to obtain this data.