No, unfortunately I did not see any of your comments that you have linked, because they were posted in closed GitHub discussions/issues and solved question topics on this forum (i.e. this one, where this ongoing discussion is off-topic). I don’t go back to look at solved and closed discussions like this one generally, because unfortunately I’m not yet omniscient and my time is limited. I will look through your links now.
The fact is that if someone wanted me to look at KeePassium then someone should have opened a topic about it in Tool Suggestions, like every other tool we look at. Still nobody has done this, so it is no surprise that it has not really been on my radar.
However, I will open a new Tool Suggestions post for you, and from there I will take a closer look at KeePassium 
Now I will lock this thread, because our advice forum is obviously an inappropriate venue to have this discussion in the first place. I’m sorry our community’s organization is apparently confusing, but generally things eventually work out whenever there’s clear community consensus.
To quote our evaluation criteria:
Usability: Tools should be accessible to most computer users. An overly technical background should not be required.
This absolutely includes feature-set.
I’m unaware of KeePassium ever being listed. I’m not sure where this misconception came from.
As @ph00lt0 mentioned this is still actively being discussed.
Things only slip through the cracks when they are not organized and categorized properly, as I was alluding to earlier. I/we try to keep up with and triage misplaced discussions the best we can, but we also try to give the community all the tools, documentation, and resources necessary to understand how Privacy Guides works, and if discussions still get lost it can certainly take a while before we take note and get things back on track. Like my reply here 