Here's why it would matter to me if I were running a ski resort.
The local skiers, are going to be a more stable customer base. They're much more likely to stick around in good economic times and bad. In the good snow years and the bad snow years. Piss them off too much, and if they can, they'll leave, and it's hard getting them back when you need them.
Tourists on the other hand, tend to be much bigger spenders. They're more likely to spend more at the resort on lodging, food, services. But they also tend to be a more fickle customer. They drop off quickly in recessions, bad snow years, or if something else comes along to catch their fancy.
I'd argue you want a balanced mixture that keeps the locals happy enough but still bringing in the big spending tourists. The stable customer base plus the big spending tourists. Not always an easy balance, but that's why it would matter to me if I were running a resort.
If I were running 49 North, the higher priority to me would be bringing in more higher spending tourists. If I were running Alta/Snowbird, it would be on my radar that a lot of locals aren't happy with some of the changes.