Couldn’t these two points be mitigated by simply storing binary data in a separate contract, which you then reference by ID?
How far would that go to offsetting the availability guarantees you mentioned as a disadvantage? Also, as I mentioned in the encryption post, the advantage of using DAML’s built-in privacy model is that you don’t have to worry about encryption keys etc.
And in terms of performance, could you explain at a high level what the API server has to do that is so taxing? Thanks!