I don't think there is really a specific defense to ST
So Rynde what you are saying is ST has no defense.
That would follow this relationship to ST and CRIT from swg legends under combat.
ST > Crit > Dodge, parry, block.
Yet I find also this statement for ST defense but its very vague.
"Strikethrough Chance: Determines the chance to deal a Strikethrough hit on successful critical hits." - swg fandom
This would suggest
Crit > ST
If ST is unable to be defended then it seems like it is a broken stat. Should be nerfed, possibly with a hard cap.
Would be nice if we had our own wiki that explains SWG Evolve combat layers.