I really cannot tell if this was meant to be sarcastic, but if this post was serious it is one of the most ridiculous things I have ever read on here. Isles fans are "foul mouthed greaseballs" but Rags fans are "well dressed and educated ladies and gentlemen?" This has to be a joke.
I guess boos and insults are less hurtful coming from people in $2,000 Prada suits and Vineyard Vines gear? In all seriousness, every fanbase has its regrettable trolls and there are positives and negatives for every region.
With respect to your original question, a good deal of the leagues "fondness" for the Rags is due to the money generated from the NYC market.
When one area contributes so much to your league's revenue and welfare (especially for teams like Arizona), I guess you do them some favors. And if an owner does them a favor now, they probably get some sort of concession down the line, even if we don't necessarily see it.
It also doesn't hurt that so much of the NHLs top brass clearly favors the Rags and wants the NYC team strong. And that generosity is again probably repaid with a favor to a team like Arizona or, more specifically, their ownership is given some leeway and a pass on things like cap floor circumvention, league financial and debt support, etc.
I assume a lot of these younger wives and girlfriends also enjoy NYC and are likely to travel with their husbands and boyfriends to NYC and explore the area because it is easy and there is a lot to do. Meanwhile they aren't planning trips around LI and exploring the area on their own. NYC is a known commodity and easy sell.
Unfortunately by the time players are old enough to have large families and have to start worrying about schooling, maybe they want clean parks and fields for sports, golf, fishing, etc. they are on the downside of their careers.
To appreciate suburban areas and understand them better and their benefits, you either have to either be ingrained in the area for a time (i.e., drafted and developed) in order to gain familiarity, or be specifically looking for something slower, which likely comes with age.