When you're done being an asshole, go look at previous X big-air jumps, and/or see what competitors have thought of them. They're consistently undersized and often flat with little pop or loft...not exactly an ideal scenario to get all triple happy.
Who knows what will happen this next year, but that other guy's assumption was at least an educated guess whereas yours is completely pulled out of your ass.
Torstein, Bobby, Sammy, and Russ (at least) all would've tossed triples had the jump been accommodating, instead, Torstein threw a gross triple backflip 180 and Russ died trying one in practice. Not to mention, many years big-air jump is simply one of the slopestyle jumps...no guarantee whatsoever that the jump will be big enough.