I don't think requests should disappear. What I do think Disney must do is make Smoking and Non-smoking and Handicap and Non-Handicap rooms a reserved catagory. This would eliminate many of the complaints at the front desk right there. Other hotels do it, it is probably not any more complicated than making the Boardwalk view rooms a seperate catagory.
If you call in and they only have a smoking room left when you try to make a reservation you have a choice. Take the smoking reservation (and room) and accept it, or rearrange your dates. I am alergic to cigarette smoke. It isn't to the point that I need to get the doctor to write me a note, but when I am around cigarette smoke, I get terrible headaches. My wife is mildly asthmatic. Smoke bothers us. I will not accept a seat in the smoking section of a restaurant. It has never happened but if I checked in and there wasn't a non-smoking room available, I wouldn't want it, I hope I wouldn't turn into a 'naughty' member, but I would really want some other room, even if they had to move me to another resort.
If smoking/nonsmoking rooms could be reserved in advance I would re-arrange my dates if I couldn't get a non-smoking room. The same with handicap. Those will always book last, unless they are needed. If you call at the last minute and that's all that's left, take it or leave it.
I think requests for general views, locatations should be noted and given to the guest if available. If they aren't available when you check in, oh well. Requests have ALWAYS been, just that, a request, not a guarantee. Any member, or any other guest for that matter, should have this explained to them by the CM and if they are disruptive, they should be evicted from the property. Everyone knows this when they book, that is noted on every reservation. Maybe a letter from Disney re-stressing this will be helpful too, who knows. In no circumstance should Disney bend and re-assign someone because of view if there is no view available (i.e. bumping someone from a room, etc.) Doing this sets a horrible precidence.