Huh? A bond portfolio always includes a significant amount of short-dated maturities to provide liquidity. SVBs decided to take on much more risk and forego short-maturations for extra yield.

Yield chasing blows up overleveraged entity, nothing new here really, except usually people rightfully criticize the yield chasers/overleveragers for being greedy; this time people are acting like SVB was a victim of the Fed instead of their own extreme incompetence.