Kev the biggest joke about it is that off-highway vehicles are...

Kev the biggest joke about it is that off-highway vehicles are spreading the seed of Saltlover plant, which completes directly with Tiehm's while livestock are grazing around it and compacting it's soil, trampling seedlings etc.
The CBD have done nothing about this in all these years!Add the scientifically noted increase in temperature and precipitation in the local area (CLIMATE CHANGE) as well as herbivory and the chances for Tiehm's look doomed.

Nowif you acknowledge the fact that none of the area is protected by any barrier from these threats, as well as acknowledging that Tiehm's does not have a horticultural body mollycoddling it for its own preservation, things look dire.

SOLUTION:
1- Protect the area from John and Jane Doe's off road vehicle activity...
2 - Secure barriers and herbivory protection as best as possible...
3- STOP livestock activity in the immediate area...
4 - Provide around the clock scientific monitoring using state-of-the-art technology and digital automations...
5 - Employ a permanent horticulturalist to observe and manage the area...
6- Reverse the impact of climate change, thereby assisting Tiehm's.

Conclusion:
It appears that ioneer can remediate all of the current threats apart from removing the livestock.

Extrapolation:

If the company has committed to not damaging any of the plants then how could there possibly be any problems?

INDEED how can ioneer's presence not be seen as a solution for Tiehm's?

How is this not obvious to smart people?

Thankfully, only smart people will oversee the final decisions on this matter rather than exasperated and emotionally volatile fanatics with an unreasonable agenda and a messiah complex.