“Hold your shares or buy more at a discount” is incredibly out of touch with the average person who will be affected by an economic depression.
“Payments can be spread out over subsequent years”
SVB would still be around today if it was possible to convince people to not panic sell
Price shocks are bad because they can cascade and cause businesses to fail, resulting in layoffs, etc.,. Stability is one of the most important things in the economy.
They will be incentivized to do this otherwise they will get nothing for their shares.