I know it is a little more expensive, but for us it is worth every cent to have 2 bathrooms.
Amen to this. While we came up with a slightly different solution, I think we'd have collectively pulled our hair out had my crew of 5 (mom and dad, two teenage kids, and my 76-yr-old-mom) had to fight over one bathroom.
Just as the OP, we had a really tough time working out how to make our group work at WDW when we first went as a group of five several years ago. Mom puts a premium on her privacy, so none of the two-bed-plus-rollout/murphy style solutions with a single bathroom were going to work for us. We originally were going to get two rooms at PORFQ, but we realized that put us in the parks or in a restaurant for *every* meal, which was going to substantially increase our costs. On a lark, I saw the villa resorts and found a 2BR at SSR, and figured they would be insanely expensive W (well, they kinda were), but turned out to be only fractionally more than the combined price of 2 rooms at POR, combined with the fact that we got a washer/dryer and
full kitchen. The kitchen gave us the option to eat some meals in the room, which offset the meal expense we knew we'd have with a 2-room solution. Mom loved the idea and didn't object to the increase in cost (she insisted on paying her own way no matter how we did it), and we all love SSR as a result.
Point in all this being that Disney does make it a bit difficult for parties larger than four. There obviously are options, but they're not always obvious.