Of course, everyone in Utah loves to thumb their noses at Colorado. I have a friend who was exiled to Boulder for a while. While there, when people asked him where he headed to ski, he told them east. They would look at him incredulously and then he would respond, "to the airport, to catch a plane to Salt Lake."
Why? Perhaps we should put the "bad" Utah ski season thus far into perspective. According to alta.com, Alta has received 167" of snow through January. Pathetic by Utah standards, but how does that compare to Colorado? One of the snowier locations with long-term weather records in the heart of Colorado ski country is Berthoud Pass, which averages about 390" a year. That is more than the advertised average snowfall at all Colorado resorts except for Silverton, Loveland, and Wolf Creek (at least according to rockies.com). Indeed, Wolf Creek is pretty snowy with an average of 435", but the bulk of ski days in Colorado are elsewhere.
Therefore, we'll concentrate on Berthoud Pass. In an average year, Berthoud Pass receives 187" of snow through January, just 20" more than Alta has received. In other words, this year Alta is just a bit behind an average year at one of the snowier locations in Colorado (with due apologies to Wolf Creek Pass).
So, a bad year at Alta (and the upper Cottonwood Canyons in general) is as good as an average year in Colorado, at least when it comes to snowfall. How about deep powder days? Let's use 10" as a lower threshold for a deep powder day. Alta averages 17.4 days with 10" or more, Berthoud Pass 3.8. Of course this year, Alta has seen few deep powder days, but that gives you an idea of what an average year is in Colorado.
Of course, if Colorado wishes to retaliate, they only need to pull up the climate statistics for near the base of Park City.