I am really intrigue about the second reason that can trigger your shutting down protocol, long term market irrationality. I have a kind of a feeling about what you mean, but isnt the crypto market irrational in some way or another?
The cryptocurrencies markets have in general more volatility that traditional markets, although BTC and other top cryptocurrencies, like ETH, have become more stable as the market becomes progressively bigger. Nonetheless we have seen that the market is vulnerable and usually reacts negatively to news, attacks, etc. We want to protect our users interests by having a shutdown protocol that is activated by hyperDAO community members if they consider it is necessary given the market conditions.