Given that the Max crashes both happened shortly after takeoff, I'd be more interested in a per-flight statistic. But I'm not sure how the industry does it.
The industry/NTSB/FAA generally cares more about flight hours, but I agree with you. Both of these accidents happened shortly after takeoff. I am surprised that no accident has happened during landing.
Is the same sensor used the same way in landing?
I would imagine so. As long as the pilot wants to control the rudder, that same sensor would be used. What I would like to know is if the MAX has a different setup. I think it'd be idiotic of Boeing to use the same rudder control configuration as the old 737 considering the problems that they had as demonstrated by this post.
All of accidents per hour, accidents per operation, and fatality per passenger are relevant.