Exactly who would I contact. I don't think the salesrep I have been dealing with would be. How about membership services.
Member Services would NOT be the place to make a suggestion about a future resort. Your vacation guide would likely be the best starting place to pass on information like this.
The design and layout (and occupancy) of the DVC resorts is consistant with most all other timeshare resorts. The fact that studios and 1BR's have the same occupancy is very normal for the industry. These decisions are not based on physical room size, but more on style and comfort for those who will use the facility.
Since most timeshares have traditionally been sold in 7 day blocks, the design reflects a comfortable living setting for a time period which sets it off from a typical motel room. These standards were carried over for DVC resorts ( after all it actually IS a timeshare).
Most timeshares have been sold as 2BR units. (Some can be used as a lock-off- like DVC). Again, the standards of the industry which DVC is a part of were used in the planning and design.
It is unlikely you find many (if any) other timeshares with 2 queens in the master bedroom (many don't even have the king- some have a double). DVC is at the top of the list with amenities provided.
Please contact your guide and see if he/she can suggest someone for you to contact about a different layout, but don't be surprised if your request doesn't get too far. The industry itself has looked at these same issues for years and the present format has served them well.
If there is a groundswell of support for a different design, I'm sure someone will create it to fill the need, but don't be surprised if that type of change is an uphill battle. Also, don't be surprised to find that your ideas represent those of a small minority. As I said above, the timeshare industry has looked at all of these issues for over 20 years now and concluded that the format in place serves their buyers the best.
Good Luck!