I haven't often seen Crocs taking on groups of animals bigger than it. Regardless of winning or not, that's the sort of thing that should be filed under hard.
The bit in bold actually WEAKENS your argument. If he's that tough, everything's easy for him. Thus, not hard. EASY.
The WHOLE point...
First hard thing I've ever seen a Croc do. Everything else he does is standard for his size and toughness of skin etc. Still going for HB as he does many more "hard" things.