Everyone doesn't need to know or care in many cases. The FDIC insures deposits up to $250k. That covers the vast majority of accounts at most banks. So a run won't occur at most banks. There were hardly any runs in 2008 for this reason - the relatively few "run type things" which happened were where big interbank exposures existed.
SVB's customers are weighted significantly more towards businesses who will have more than $250k in the bank. So, they have to be ready to take action fast, so a bank run on SVB is much more likely.
SVB's customers are weighted significantly more towards businesses who will have more than $250k in the bank. So, they have to be ready to take action fast, so a bank run on SVB is much more likely.