You should tell Athom.
This is a community forum and the community cannot work on improving the Z-Wave stack. However, as you have already noticed, Athom doesn’t seem to be inclined to fix this problem (and it has existed for a long time now) because, basically, they don’t acknowledge it as being a problem.
So you can wait until Athom fixes the issue (which may be never) or be pragmatic and read up on what “secure mode” in terms of Z-Wave actually means, and that it doesn’t mean that your network is not secure (from a hacking standpoint, if that’s what you’re worried about) if you don’t use it.
