Then Peter missed the point when he judged them for their attempted deception. Their deception was revealed through their giving. The giving did not create the deception. By doing one thing they were doing another. That is the entire teaching of the passage, and why they were judged, and why they died.
Deception always involves pretense.
They were pretending to be a part of the common assets community and the giving was the means of having their pretense exposed. Their stewardship, in other words, was a farce, and simply a means to an end for which they were not successful. I said as much in an earlier post, only I did not use the word, stewardship. The context of the entire passage has to do with the agreed upon common assets sharing. Everyone agreed to share so that no one would be lacking.