Allosaurus mechanic opinion

in the clip he says "I have to make the thing stand here." I believe he either means

The animation will be changed and will be standing while clawing/biting onto target
Its about the Stego standing (it isnt setup for it to change to the pinned/other animation), and the animation will make more sense if it was lying/pinned to the ground, you can imagine it angled instead of attached to the side, with it being more ontop than latched like an omni