Help me understand the risks of BCHBull/AnyHedge

My understanding is, please correct me if I am wrong:

- BCH has some limited smart contract functionality built in

- AnyHedge extends this and makes services like BCHBull possible, it essentially facilitates the creation of a smart contract into a format the BCH blockchain understands

- The smart contracts are done on-chain, NOT using SmartBCH or similar risky side chain. It's non-custodial and pays from your wallet, into the on-chain smart contract, then out back into your wallet as per the on-chain smart contract configuration

- The smart contracts rely on set contract terms for time as well price oracles for triggering liquidations

I have read about the attack scenarios here https://anyhedge.com/whitepaper/attack-scenarios/

A few questions:

- What if for whatever reason there is no communication possible with any oracle - how and when would the smart contract pay out?

- Are oracles determined at the beginning of the smart contract and configured somehow on-chain?

- How concerned should I be putting a significant amount into a BCHBull hedge?