Go through the same encounter twice

The following text describes Gregor Schneider's Die Familie Schneider installation.

1. Does "so that visitors went through the same encounter twice" it mean "so that the visitors experienced everything twice"?

2. Does "going in through one house and exiting through the other" mean that "the houses are connected to each other from inside, so that you can enter through the front door of one house and exit from the front door of the other"? But, I do not find any proof of this in visitors' reviews. Most of them say that they enter the houses one after another.

Text:
Schneider’s Artangel project commission, Die Familie Schneider, which he presented in London in 2004, used two adjacent houses whose rooms replicated each other, so that visitors went through the same encounter twice, going in through one house and exiting through the other. Both houses were peopled with family-member doubles in disturbing poses (Art and Psychoanalysis by Maria Walsh).