You have to consider how these actions will affect the future relationships between banks and both the specific actors but also the startup scene in general. Startups already had a difficult time with traditional banking which is a large factor in why SVB was so successful, because it catered to the market specifically. What bank is now going to look at a startup not be thinking "Do we really want to take on a group of people who will collectively launch a bankrun at the slightest sign of trouble, even if we are geared to handle a bank run?", A run on the bank is never good news, even if the bank stays liquid, and it has a ton of knock-on effects and causes a huge number of headaches for the bank.
In this situation, where you think there might be a bank run and you have a coordinating role with a large number of customers. I think the responsible thing to do would have been to reach out to the bank and talk through all the options that will let everyone stay whole without a bankrun, not to fire up a group chat and scream "The bank is burning to the ground!". It seemed very likely that without the panic SVB could have secured liquidity and then the long term investments would not have posed a risk. I'm not saying their position was optimal or even good, but the panic just does not look to be the best option for the customers nor the most responsible action for those who had major pull in the market.