Well, this test was too presumptuous to be correct, and in its assumptions thought it useful to chide me for my "inconsistency". Bad design.
While it's morally wrong to kill if avoidable, it's even more morally wrong to allow even more people to die because of your inaction (inaction is also making a choice). The fact that I believe the latter doesn't make my former belief inconsistent at all. A morally wrong action can still be less wrong (i.e. do less harm) than another action, and therefore you can be morally obliged to choose the lesser evil. It's odd that the test designer didn't consider this when you can clearly see that he considered killing one over many was morally acceptable.
The second problem was that the designer considered "total happiness" to be the only way to measure the morality of an action. I don't believe it's right to kill one over five because of total happiness, but rather because of total contribution to humanity's progress.
The designer did not consider "total happiness" to be the only way to measure morality of an action. That was merely a "utilitarian ethics or other ethics?" question.
I would be curious about your 8 answers to see if your false positive was a result of differing definitions of "morally wrong". In the context of the questions "morally wrong" would mean "invalid answer" rather than "sad answer" and thus any action that can sometimes be the valid answer would not be label as always morally wrong in this context despite it potentially being always lamentable.
As for consistency both the following answer chains are scored as 100% consistent:
no,no,no,no,1 dies,1 dies,1 dies,1 dies && no,no,no,no,many die,many die,many die,many die
That said, yes this particular author is rather pretentious in their implementation of the trolley problem. I could try to present a less pretentious set of examples if that would be beneficial.