Oh yeah true, green pylons can indeed be a big roadblock. Didn't even think of it before but of course it can happen. Shouldn't be too common though luckily as it really requires a specific level layout and pylon next to a choke point.
But yes, there are some counters out there for it! Forgot to mention it in patch notes but blanks aren't as bad anymore (when they come to your hand) as they were before. But now that I know of this, I should probably think of more ways to combat unwanted pylons.