Lol, I don't see how this can be taken seriously.
Watch the clip;
In this one you can see the commission is there, and they wipe him off with a towel before the round starts.
If that is considered greasing him down with Vaseline, then... oh nevermind.
Just stop and think about the amount of Vaseline that would need to be applied to a sweaty body to even be noticeable...he didn't even towel him off first. If the brief touch to GSP's shoulders/chest/back could possible put enough grease on his body to effect BJ's submissions, then BJ needs a new line of work.
My impression: this is just silly...