Crabmen body parts scale with their total HP (strength), and they have more armor. They become harder to disable with grenades.
Our soldiers however keep the same body part HP whatever our total HP. Strength doesn't bring a much bigger ability to survive. We can still easily get disabled body parts by a grenade or mortar Chiron.
Currently, the only way to avoid it is to put heavy armor on all of our soldiers.
Strength enables us to have soldiers with more HP. Please distribute this HP into body parts to avoid being disabled too easily. It would give a bigger value to strength.