Not gonna be as harsh as this guy (though he has a great point, we aren't all pros) but I will say that if your ski snaps like that I am guessing there were two possible outcomes to you falling:
1) The ski breaking
2) You badly injuring yourself and saying bye-bye to your knee
When things break like this, especially from a company like Moment who more than anything has great pride in how their skis ride NOT solely in their durability, unlike Line prides themselves on because people beat the crap out of their skis. it is probably due to your fuck up. Yeah you fell not too badly but you landed perfectly in such a way that the ski broke. Not all impacts can be absorbed by the flex of the ski and especially in the tips where there is rocker, so that means the core is a bit weaker in that area. I have had binding rip outs and tails break from landings, but I have to say that despite it being a crappy situation and breaking my equipment I am happy that it wasn't my knee or something else that broke instead.
Yeah Moment could replace them for you if they really wanted to as K2 has replaced skis for me in the past that have broken in similar situations (though I wasn't on rails, which could make a difference I guess), but it is not their responsibility to toss you free skis because you messed up.