I don't see any kink.
The one side of the axle measures 25 5/8" from the top of the hopper to the center line of the axle, the other side measures 27".
That's nearly an inch and half difference ... which could make the unit prone to tipping, depending on which way it was facing when you traversed across a hill ... and doesn't even begin to account for the front-to-back variation of the axle placement ... .
A couple of pictures to illustrate:
First, using the normal lens setting on my iPhone:
View attachment 697619
Second, using the wide-angle lens:
View attachment 697620
Can't really get an pics of the front-to-back variation, due to the gearbox obscuring the view.
Interesting.
Personally, while I'm certainly no engineer, I would think that the variations I've described/shown, would make the unit inclined to bind and place unnecessary stress on components, such as the gearbox.
I have seen at least one report of at least one wheel locking up and being drug across the grass when it was empty (no weight) that would seem to indicate binding.