It is well understood that you have superior equipment so we needn't labor the point (by comparison).
But with respect to the equipment you had at hand....it is clear... a simple adjustment could be made (move pins inboard) to clear the tire chains. Not your responsibility of course.
The fact that the implement was poorly set up, FEL and a blade not being the equal of a snow blower speaks only to the effectiveness of the rig for the job at hand, not the build quality or reliability.
Presumably the tractor started up and ran adequately for you, despite a lack of maintenance? No one would argue there are better ways to clear snow and more suitable equipment, if that were your point.
But I think calling the N/H a 'POS' is a bit over the top....simply because it doesn't hold a candle to your personal equipment. That is all.