So why cant Nexus tokens be turned into essence?

Just noticed this after getting my recall and death animation things. I have tokens leftover (i got poro first) and there's still some daily ones coming. I was originally gonna say Blue Essence but you know since they're rare anyways, you should make 1 token worth 5 Orange essence instead.

Seems only fair since we are basically testing this game mode thats honestly better than normal league rn.