It is imperative but Phoenix is a different animal than LA is/was. The amount of money that flowed through hockey in Southern California in the late 90s and early 2000s just doesnt exist anymore. I literally had parents spending $20k a year so their kids could play at an elite level. That coupled with what Turcotte built in Westminster, which grew into other rinks was a ton of hard work but it also required a lot of cash. It's been hockey's downfall for growth in certain areas. That group of kids between 89 and 94 had some great players who've made their own mark on the sport. Say what you want about Mike Barnett, etc, but Mike brought a lot of that to the desert when he came. There was a vision as a whole. Not sure where it stands anymore as I've been out of development since 09' but I do know, a lot of the guys who went to AZ have gone back to other areas.
All in all, it's going to be a long haul for permanent success. The location of the rink, youth participation, etc, is all secondary right now to the product on the ice.