The future has a tendency to be less ground-breaking than initially perceived. Has always been the case.
Also, most fire fighting aircraft are old gear, so who's going to front up with the capital to buy shiny new machines with all this tech to save nothing more than a pilots wage, but likely add a technicians wage in the process? Still flying 50+ year old airframes on fire grounds with excellent results.
Passengers on board? Not likely. How will you ever place fault on anyone if lives are lost?
Some jobs will disappear if the price point is right, but hardly worth getting worked up about. The boom and bust nature of the industry as a whole is enough to deter an operator from investing in the technology in the first place.