It's personal preference, I want the DATs and I don't want someone else holding my flight history so I have only synced a very few logs.
To me your drone appears to be low on its right hand side and it looks as if the right rear arm is touching the table whereas the left rear arm is not. A quick glance at mine suggests that both rear motors should be clear of the table top.
Though I would wait and see what others think.
With regards to what happened to the prop,
It's difficult to say, do you normally remove the props at the end of a day's flying?
If the props are not properly fitted, meaning they have not been rotated far enough for them to lock into place, then the shaft that runs through their centre sticks up above the top of the prop's hub.
When the prop is correctly fitted then the top of the shaft is flush with, or perhaps slightly below, the top of the prop's hub.
Also for an incorrectly fitted prop to be thrown in the release direction, let's call that forward, the motor would have to deccelerate very rapidly. Plus the drag (air resistance) of a spinning prop would tend to move it 'backwards', in the direction to make it 'lock' as would motor accelerations.
Given that the props can 'bite' I am not inclined to try incorrectly/ incompletely fitting a prop to see whether any deccelerations are strong enough to throw a prop forward.
Could the catches of a prop break?
I have had one out of the three catches on each
M2P/Zprop break in an indoor mishap but when inspecting the drone the motor of that prop felt rough and I think the catch fragment was catching on the motor windings.
There are at least two threads where 'mavic' props broke, at the hub, in mid air but they were/are, I think, Air or
Air 2 or
Air 2s and I think they have only to catches per prop. The
M2P has three catches so might be more secure. At least one of those 'Air lodt a blade but remained airborne and with difficulty controllable and it was brought home. I did test a
M2P with half a blade cut off, from memory the drone remained controllable if the butchered prop was on the rear but was uncontrollable if that prop was on the front. Those tests were indoor flights and literally take off or try to take off, climb to a height of a couple of inches see how it handled for a few seconds then land. The upward looking vision sensor registered the ceiling and kept the drone low.