The original contract between the German Research Society and the Nepalese authorities stipulated that copies of microfilms had to be purchased directly from the National Archives in Kathmandu. The one exception to this was that copies of the films were available in Berlin, where German nationals could consult them and have copies. That's the contract and it has not been renegotiated. Many of us have wrestled with all this for many decades.
If anything different from this is happening then it is the result of an altruistic gesture by someone in favour of supporting non-nationalistic scholarship, which is lovely. But it's not a result of a change in the original terms of the contract.
Best,
Dominik