If only there were some very large metropolitan area near Tahoe that had a huge mountain bike community...maybe even a metropolitan area that was so into mountain biking you might say it was invented there, and that numerous bike companies base there operations near there.I don't see how N* (or any other Tahoe resort really) could pull off the kind of summer over-night stays they'd need to justify doing heavy bike park investment to their share holders.
But seriously, if a Tahoe resort can't justify builing a world class bike park, no where can. Tahoe is already a huge destination. It should not be hard to leverage that into becoming a bike park destination.