That linked description is very interesting. They list 3 steps that need to happen to get an incorrect dose. The 3rd step is that YOU confirm the dose. The next section emphasizes the importance of confirming it. That's all great, and yeah, the user basically hit OK but that does not change the fact that they have a software bug.

Also, since it happens intermittently with that kind of input I have to seriously question how the software is put together. If the input box shows the decimal there's no way it should slip past the parser. Something smells very wrong with how their app is put together, and that would make me concerned about other issues we just don't know about yet.