Blitzcrank's W nerf

Anyone who plays Blitzcrank understands that the w change is pretty much a nerf, you get an improved ms buff for about .5 seconds, then you go back to regular ms before the short decay. It may have been intended to be a nerf, I read the initial patch notes which stated that they wanted blitzcrank to be more live and die by the grab, but I think this is a bit too much. The improved ms doesn't really help with landing grabs, since most grabs, except the ones where you're chasing, are while you're dancing around before a team fight (or when you're trying to pick someone out). I fail to see how this w change promotes any sort of possible grab, even for a short duration. Anyone else have thoughts about the w changes, or is it just me who thinks this is really annoying to deal with while playing blitz? It just affects his mobility so much.