Thoughts on making Redemption a Summoner Spell?

Discuss with me? I'm no pro but I know some pro and ex-pro players think of exhaust as something that's not fun to go against. And while it does provide some defense against assassins and high damage enemies, it has been hoped by these players (ie. scarra) that something could be done with it.

With the release of Redemption it's surprising how frequently purchased and used it is providing aoe heal and damage. It's very interesting that it could be cast after death (the first of it's kind really). When I think of something this useful, it seems that this item has the makings to be a summoner spell. One that quite possibly replaces exhaust even. Maybe a buff or tweak to go along with it to accommodate the change. But this would allow for a new support item to swoop in, or just an extra slot to build something else.

What do you think?