A modest proposal to Zilean's passive

Get rid of the 8% increased exp completely. Instead we have the bonus experience linked to the damage Zilean/Surrounding Ally champions deal. The damage dealt to enemy champions would be converted over into bonus experience.

For instance, say Zilean can do 124.12 MDam before resist. Now we take about 5% of that damage, convert it to exp and add it to his pool. This would give us a bonus 6.206 exp. Which is only 2% of what is needed to get to level 2. Now say we include allies being able to proc this passive while close to Zilean. Let's say an Ezreal auto-attack can deal 73.1 per hit. Giving us a total bonus exp for both Zilean and Ezreal 3.755 per hit. With Ezreal having a total dps of 53.6 before armor, they would be getting about 2.68 exp per second.

Thoughts?