I don't see why. Still need a cover over the front of the engine, and a shaft seal. And if there is any leak, and it reaches the belt, that's it. Belt fails. And it might not be enough to show outside the cover.
Come to think of it, another reason I dislike belts.
I do use a digital device in my photographic pursuits when necessary.
When someone rags on me for using film, I use a middle digit, upraised.