MIST, not mist, stands for Minimum Impact Suppression Tactics. A video on Youtube (https://www.youtube.com/watch?time_continue=6&v=bQpHSSAVDCU&feature=emb_title) provided by National Wildfire Coordinating Group (NWCG) explaines the importance of MIST and why it should be used as a baseline for active wildland fire management. MIST can also be found in the Incident Response Pocket Guide (IRPG https://www.nwcg.gov/sites/default/files/publications/pms461.pdf) on pages 97 & 98.
The importance of MIST is to offer an ethical practice in regards to tactics when considering natural, ecological, social, economical values, firefighter safety, fire conditions, and good judgement for ones actions. MIST is intended to accomplish suppression with a minimum amount of resource damage or long-term adverse impacts on the land.
MIST is to not comprise safety.
MIST was developed to incorporate every person on or near the fireline. It allows all operations of fire to adhere to a joint responsibility to be stewards of the land when considering wildland fire management plans. MIST also allows for firefighter safety to be probity number one.
I believe MIST was developed with safety in mind due to the number of firefighter lives lost between the 70s to 90s. There use to be a mentality of putting the fire out and saving the environment at all costs, even lives. Now, trees and grasses are no longer put as a higher regard for the men and women fighting these fires. MIST incorporates the 10-18, LCES, and looking up, down, and all around to mitigate any hazards. The mentality of MIST is another way to show that even though these environments can be destroyed and burnt down they still have the ability to grow back with new growth and life, but the lost of human life is permanent.
On a final note of the MIST video linked above, I thought it was very interesting that NWCG, the creator of the video and many of the safety standards when on the fireline, encourage the use of explosives before the use of chainsaws. They provided examples such as when dealing with snags or suppression rehab by concealing flat cut stumps. In my 5 seasons of fighting fire all around the country spanning from as far west of Alaska to Tennessee I have never seen the use or thought of using explosives as a tactic. I do think it would be fun, but I believe it is much more dangerous to the firefighters if implemented due to the unpredictability of explosives.