Again, she didn't speak with insufficient specificity. In the only actually quote found or posted of what she actually said, she said federal lands. A poster here made references to 1 National Park in Michigan, which is not synonymous with federal lands. The poster also directly stated that she said "parks" when she did not.
ETA:
Furthermore, even though it's a technicality to look at what someone actually said when discussing what was actually said...... she said this in the context of declaring a medical emergency. What is the impact of declaring the emergency on the legal aspects you posted? Since it's already been established that declaring emergency unshackles a president from Congress, as proven by Trump, why would the legal argument you're making persist?