Weakest elves are not more in line with average elves in terms of combat damage bonuses. A weak elf will still have a crummy load capacity, not be able to use heavy weapons, and all that comes with low strength. They will just no longer receive a damage penalty to combat for below average/poor strength.
So this means if you play an elf and your strength was at least average, you will see no difference. Only those with below average or worse.