They should lessen it's cost even by 1 quanta. I mean, sure, in duos or trios or rainbows, it could work as a form of immortalization, but come on! There are some cheaper, but not long term, alternatives to that. Also, by lessening it's quanta cost, we could finally make quite a nice attacker in mono-Time. Seriously, in terms of mono-Time decks, GotP is better.