For example, an audible tone the moment it shuts off the motor while underway.
There are other design changes that could reduce the danger of a nose dive that 3rd party manufacturers have pounced on including small wheels that allow the product to potentially slow instead of come to a dead stop when an edge hits the ground.
I don’t know what product liability is for continuous mounting evidence that an existing design is lacking obvious safety feature and choosing not to make changes or acknowledge this.
But I suspect ultimately this will end in a class action suit.