I'm not actually sure if delayed is the right word and if the two systems exist in parallel (again). I've only kept my eye on the discussion and haven't looked at actual code.
You can read about it here: https://github.com/MinecraftForge/MinecraftForge/issues/668
That actually means, that people were too lazy to do an easy solution, to fix the Problem temporary. Also it's only for Fluid Blocks, not for Fluids in general. The only thing you could expect is, that you will not be able to pump Oil using my Advanced Pump, until that is fixed. Lava and Water stay vanilla as they were before.