I assume price would be the major factor. Also, as someone who knows nothing about e-bikes, but who knows "DJI makes good cheap drones and gimbals", they'd be pretty high on my list of "probably makes an ok product" without searching.
I'd trust their intent to create a good product (rather than aiming for something that will look good enough for just long enough to get you to buy it), their general manufacturing, and even engineering, but with the forces and water/dirt involved, I am not confident they'll succeed in the first few iterations.
> but with the forces and water/dirt involved, I am not confident they'll succeed in the first few iterations.
Air isn't perfectly clean or dry, either. I would bet that DJI has some clue as to how to protect the most sensitive components in a way that can survive _lots_ of vibration.
I agree with GP here, even on a city bike the determination water, grease and fine grit have to ingress into totally inaccessible spaces and ruin them from within is relentless. And then it's 10x worse in a mountain bike scenario.
Clearly not unsolvable but I'd wait for some 1 year use reviews before even thinking about it.
