In the early days ('60s) it was important not to have embarrassing failures that could be exploited by the commies in propaganda. The commies were more secretive and we didn't learn of their fatalities until much later. Also, space pioneers were seen as heroes, so losing them would upset people and perhaps undermine support for the space program, which at the time was an important part of the cold war.
We should perhaps make it into more of a "pioneering" presentation and begin preparing people for the fact that pioneers are risking their lives and that more of the them will probably die.
(post is archived)