I'll just post it in this thread also since many people still seems to be confused.
Examples of how the change will affect certain stats compositions:
50% crit chance 70% crit dmg - adding 8% crit chance gives 0,4% more damage then 10% crit dmg
50% crit chance 80% crit dmg - adding 8% crit chance gives 0,9% more damage then 10% crit dmg
50% crit chance 90% crit dmg - adding 8% crit chance gives 1,5% more damage then 10% crit dmg
50% crit chance 100% crit dmg - adding 8% crit chance gives 1,9% more damage then 10% crit dmg
60% crit chance 70% crit dmg - adding 8% crit chance gives 0,2% less damage then 10% crit dmg
60% crit chance 80% crit dmg - adding 8% crit chance gives 0,2% more damage then 10% crit dmg
60% crit chance 90% crit dmg - adding 8% crit chance gives 0,7% more damage then 10% crit dmg
60% crit chance 100% crit dmg - adding 8% crit chance gives 1,2% more damage then 10% crit dmg
70% crit chance 70% crit dmg - adding 8% crit chance gives 0,9% less damage then 10% crit dmg
70% crit chance 80% crit dmg - adding 8% crit chance gives 0,4% less damage then 10% crit dmg
70% crit chance 90% crit dmg - adding 8% crit chance gives 0,1% more damage then 10% crit dmg
70% crit chance 100% crit dmg - adding 8% crit chance gives 0,6% more damage then 10% crit dmg
80% crit chance 70% crit dmg - adding 8% crit chance gives 1,5% less damage then 10% crit dmg
80% crit chance 80% crit dmg - adding 8% crit chance gives 0,9% less damage then 10% crit dmg
80% crit chance 90% crit dmg - adding 8% crit chance gives 0,4% less damage then 10% crit dmg
80% crit chance 100% crit dmg - no difference in dmg