Is the Animated Outline/Fill tool using an algorithm that is too distinct?

[MrMiracle77]

I was in the section on scripting and looking at a topic on animated outlines and fills and thought about something that I'd noticed ever since watching Wolfwalkers. In Wolfwalkers, there's a scene between Honor and Bill that takes place near a campfire, and I can tell that the line used to create the animated shadows along their faces is being created using Moho's animated fill feature. I looked at the examples in the scripting topic and thought that the noise was equally familiar.

Does anyone else find the animated outline/fill jitter a tad distinct? Is there a way that a 'seed' randomizer could be added to give it a less distinct pattern?