Numerous bugs have been reported by many different people over the months, so you’re not alone. It’s unfortunate to spend time making bug reports and not see any movement on them. On occasion, though, you might get lucky… and then you’ve enriched a lot of other players’ AoE gaming lives 
Sadly, I think it’s to be expected that some, or maybe many, bugs will never get worked on or addressed; that is, unless there are official devs still working on AoE2:DE for years to come. And a fair portion of bugs will probably never even be seen by devs due to how many come in and how busy they probably are squashing old bugs or making new enhancements.
- Some reported bugs will probably just be small blips on their radar as they scan the forums and then forgotten within days or weeks; unless they’re doing rigorous and tenacious tracking on the back end to capture, catalog, and prioritize all.
Most of my words here in my post probably go without saying… so, my apologies for saying :-/ But I just think it’s important to keep a realistic perspective on things, and to try to be somewhat okay with how you did your best to try to help the game. It’s also possible that modders may have viewed your suggestions, too, and may be hard at work trying to fix some of the things that you and others report.
PS: If your 1st report link in OP truly was your first… well, that was just a month ago. I don’t think we could expect them to implement, test, and release within a few weeks of you reporting them. There are game-breaking bugs reported in Dec '19 that still need fixing, and several other bugs/enhancements before and after that which I feel would take higher priority than some or most of your suggestions. (Disclaimer: That’s only my personal opinion, don’t take offense. Trust me, I’ve made bug reports and suggestions that I’m passionate about, but where I might be the only person on Earth who is. Hopefully not, but if so, I try to be cool with it (i.e., I tried).)
I noticed you wrote a bit about the difficulties of selecting villagers behind things. Imo, that has always been a little imperfect in AoE, but usually you can get around it or click a different pixel and you’re fine; or just be patient if they’re building something. So, to me, I’d personally see this as a minor bug. It happens sometimes, but it’s not a showstopper bug. Or it’s not necessarily more important to fix than some pre-May 7th, 2020 items are.
All that said, I hope all your bugs get addressed if they are all, indeed, deemed bugs.
ok, then again a reaction is not worth anything, but still something