C297 You Fell Before You Could Exert Yourself

Why was Lin Kong's uppercut able to send Hsu Lingyun flying?

In terms of level,

the Triceratops was only a level 3 mutant beast, and it was a whole level lower than the level 4 Hsu Lingyun.

Theoretically speaking,

If Hsu Lingyun defended with all her strength, Lin Kong's uppercut would not be able to send her flying.

However,

There were three reasons why Hsu Lingyun was sent flying