couldn't agree with you more! We are replacing a Arctic Fox 27' trailer that we don't have to move the slide to use the 'loo' and is the major reason for looking at the two different sizes of the Surveyor.
Apparently the older style 220RBS were built such that you either had to modify the loo door or open the slide. Forest River/Surveyor must have gotten the message because the mid-2015 style change included 'fixing' this issue. Now there's no reason to open the slide except to go to bed and even then it's not 100% necessary the bed is fully accessible on one side of the coach. Kitchen, etc is fully accessible with the slide in.
We really did like the 201RBS however, the cargo capacity and the fact that it has smaller diameter axles which makes it impossible to change the leaf springs to increase the cargo capacity just put it out of the running. We travel with full water all the time because we dry camp and also run a string of Field Trial English Springer Spaniels so the few water changes the happier everyone is :-)!