Your bullet points may (or may not) be fine for commercial software. If you're working on anything governed by the US Federal Acquisition Regulations (FAR), they are a minefield.
- Process compliance is usually baked into the contract. If the contractor stipulates to complying with a process, especially a government process, then it had better be followed and documented
- Documentation is not optional. People move on, get fired, and/or die. Because the s/w works today, it may not tomorrow when MS, Redhat, or whomever push patches
- "Customer collaboration over contract negotiation": Once the contract is in place, it is in place. Customers will _always_ try to add scope and eventually try to direct the individual performers. If you're Firm Fixed Price, you are dead in the water. If you are Cost Plus Fixed Fee (CPFF), you will dilute your profit when you inevitably overrun.
-- Aside: CPFF means the fee is fixed at contract start. If you overrun you may get your costs but the fee stays the same.
And so on.
An even bigger problem is when Lean/Agile gets glommed on to hardware efforts where you can't simply issue a patch every 30 minutes and where you can't have the customer in your day-to-day shorts.