You say that like we don't have three weapons to choose from and our subclass abilities to fight elemental shields from swords. Swords are seriously not the hugest threat in the world. Pull out a shotgun and wait for them to put the shield down. Run away. Chunk grenades. Kill them before they grab heavy. Or just die one time and be prepared for the next round with a team of Guardians. Not insurmountable, and totally worth it if it allows us to have more power and more options overall.