Jeanie,
This type of change has happened more times than I can count or remember over the last decade I've been here.
If you are relatively new here and have only created a few profiles....it is pretty easy to bring those few profiles up to speed.
Once you've been active for a while and pass a certain threshold...say 5,000 or more profiles created....even if this particular change might make the profiles look a little less 'finished' or seem like there's a question on if there actually is another spouse out there that hasn't been added...(adding a ? without any evidence or reason given to suggest that the issue exists)... it becomes something that you just learn to ignore.
You'll understand that this will likely spawn an 'Add A Spouse A-Thon' or two and some happy wikitree'rs will be thrilled to earn their 1000 monthly contribution badges and place high on the A-Thon participation charts by going to those 5000+ profiles and clicking on the "No more spouses' button and you'll feel content about having provided the opportunity.