Hard disagree. The only benefit I can think of from having the shitter and the shower in different rooms would be if you live with many different people and have bad time management.

A wetroom gives you much more open space, and it also has basically everything many people do in the morning: toilet stuff, brush your teeth, take a shower. An added bonus is that it's much easier to clean.

This seems more common in Europe, where the toilet is in its own room down the hall. What I don’t like about that is often that means people walking around the house with unwashed hands as they make their way to a sink. In the US you will find something like that most often where the master/owner’s/primary bathroom has a water closet with the toilet in its own little room in the bathroom. That can be handy for couples and feels like it contains the toilet germs more.