3) You might want to use one of those procs to get Immolate up again. However since Backdraft now lowers the GCD of the spell as well, we don't see this as a huge sacrifice (compared to how the talent originally worked).
It's a quote from GC. So warlocks version of Tidal Waves http://www.wowhead.com/?spell=47260 works for GCD too. Could we get same treatment? Anyone from US could remind GC on forums that we're suffering from it way more than locks, cause our LHW is in use quite a lot?

I dont think they want to give them dps boost by lowering GCD, just to remove little annoying thing that goes with 1 sec GCD. So why not?