They can’t get as close to a fire as the smaller craft due to the wind sear and thermals from the fire.
These can literally rip the wings off the larger craft which are not designed for the air loads seen.
That’s why a lot of fire fighting aircraft are old bombers, helicopters, or purpose built aircraft; they can take the stress.
It’s not as simple as it looks folks.
“After the 2003 fires ravaged Southern California the governor appointed a commission to find ways to address shortages that led to widespread devastation. The panel made 49 recommendations to correct the problems.
But four years later, those problems still exist”
http://www.ocregister.com/news/state-fire-firefighters-1902899-kehoe-california#
Bottom line, we have a muscle-headed incompetent Liberal governor and an incompetent Liberal legislature.
The incompetent bureaucrats & politicians are on FNC now patting each other on the back.