I don’t see anything wrong with showing cadavers to the general public. However, there is absolutely no excuse for exporting unclaimed bodies in order to make a profit.
If this display was primarily about educating people about the body, it would have been put in a library or museum to be seen for free, not a traveling, profiteering circus.
Agreed. It would be a much different story if these were people who donated their bodies to science. I’d bet that people would willingly donate their bodies for the project. But, as you said - it should be displayed in a museum or medical college, not a traveling circus.