Time for my two cents... We had a coach with only one bath for eight years and fivers before that. Reminded us of our first house with only one bath. We learned to do the "dance."
The bath in the old coach was accessible with all slides pulled in. Many new coaches like ours have the bath in the back which would require either opening a slide or crawling over the bed. The half bath mid ship is accessible while in transit. Not having access to a stool in transit would have been a deal breaker.
When we are off the road, the half bath is for the cat box and their food. The stool is only usable for a stand up whiz. We are happy with the set up. Almost everything in an RV is a compromise.