Why is there so much hostility/dislike towards Renewal?

[DoctahW]

Cast times are 80% variable, 20% fixed. SG10 has a 2.8 second fixed cast time. Arch Bishops get a skill that halves said fixed cast. And Warlocks get a passive that reduces it by 10% of the fixed, furthermore, INT and DEX now affect variable cast times, just to clear that bit up.

I would like to see how it'd go, I've heard in Renewal, you 99 4x faster, and 1-150 is the same as 1-99 currently.