We will be launching an open source coordinator to be help recover funds if we cease to exist, but the entire wallet stack as launched won't be open source. As for competitors, we'll have a first mover advantage on loss data, so we will better be able to underwrite the risk.
Just like any other insurance product, we need to know the counterparty in the transaction. If someone wishes to keep their bitcoin holdings entirely private, I'd recommend not telling a single person about you holding the bitcoin. We are laser focused on our initial product of cold storage insurance, but open to adding other lines as we see traction.
I don't see conflicts of interest around keeping demand high, custodians continue to exist with high demand, this is providing a better financial wrapper to provide those assurances with insurance.
If trident, or the use of miniscript in general makes it such that bitcoin loses trend to 0, over time the risk will be appropriately priced and people will have more affordable premiums as that is validated by the actuarial models.
I sure hope it can survive! There will be insurance of some form, as pooling risk is something that predates fiat by hundreds of years, it'll take on some form of existance even in a post hyperbitcoinzied world.