Did the court have to pick one map or the other, rather than drawing its own? If not, this is pretty shocking that a court would find a map drawn by a party the most appropriate.
I've looked this up; it appears that Colorado courts are allowed to pick between plans OR make a new map entirely, but I think there may be some sort of limit, either statutory or maybe just through precedent, regarding when a judge can throw out existing plans.
Looking at the cases from the last few decades, the only time the CO courts didn't just pick between plans was in 1992, when the State Supreme Court appointed a special master to make a plan when the Democratic Governor kept vetoing the GOP legislature's proposals.