Ya man. At first it's like he is doing what newbs do, don't know anything so they grab the head.
I've started doing a lot of that as well now that I have solid movement and fundamentals. Once you start hitting guillotines (legit guillotines rather than just grabbing and squeezing the head) from on top it makes passing much easier.
Also great since with no arms it applies to opponents of every size. All of this has been said before, I know, but has been a great addition to my game.