The reason many people dislike RCR is not because they favor Real Estate vs 'on hill expansion'. The vast majority of ski resort ownerships operate this way (after all, it is a business and the point is to make money, which is done from real estate, not from ticket sales)
The reason everyone hates RCR is because of their terrible customer service history. In regards to Lake Louise specifically, one of the major contributing incidents was a few years back when a customer paralyzed himself on a park jump and somehow managed to successfully sue RCR afterward for a sizable chunk of money which led to RCR pulling the jumps from all of their resorts. (what happend to the liability waiver?)
I'm pretty sure almost everyone would agree that Louise was a better hill before, and has been since, RCR ownership. There was also the whole Foretress/Nakiska fiasco as lightly mentioned above.
There are countless other 'small' incidents relating to money grabbing, poor customer service, and employee treatment at RCR hills.
(ps: it's not just out West... everyone here in Quebec hates RCR too)