GW: should it be the larger the easier?

In a larger war there are more chances to unlock needed techs and sub commanders, which in the end makes it easier to face the faction leaders. while in a small war there are fewer chances to get the needed techs which in the end make it very hard (sometimes impossible) to face the faction leaders. Could we change the rule a bit, the number of techs you get is almost fixed no matter how many battles you fight. Maybe in uber size war you could unlock a tech every 2-3 battles and 1-2 battle for epic 1 for large and 1-2 techs unlocked each battle for medium and 2-3 techs unlocked every battle for small.