Bombs are already the worst weapons in the game. The only thing they're good for is the knockback and hazing. Enjoy doing Firestorm Citadel with bombs while gunners and swordies breeze through Vana's throne room in 2 milliseconds.
Therefore let bombs pierce through Gremlin Shields since that sounds fun and since it is a PAIN chasing those gremlins down for ETERNITY while gunners and swordies just one shot em. And since it sounds fun.
Do it.