Wooyang Kim

Hello,
So I'm trying to follow Mix Training's fracturing Basics tutorial and really liked what he was doing with 2D option for fracturing things like wood. I'm confused now because I did the similar action and can't see to get wood splinter like shapes. All he did was change it from 3D to 2D and got that shape. When I try it, the whole thing seems to break like above pictures.
I realize he's on an older version and I'm on the 17.5.258. Has there been a change? What must be done for me to get those results?

https://vimeo.com/298979142 [vimeo.com]

figuring it out little by little… can't seem to get the value just right but I think I'll edit in photoshop
Helpful video for anyone who's trying to do this as well: https://vimeo.com/246591777 [vimeo.com]