A lot of great points all around.
For me both security awareness/knowledge and a decent security program/setup go hand in hand, with education being of more importance IMO. I think the points dicussed thus far will depend on which crowd you are referring to. I would say that for most average users with little knowledge all they want is for their computer to work and not get in their way. WD is a great option for that because it fits that criteria very well, but it doesn't have to be WD only. There are many great programs/suites from the likes of Norton, Bitdefender, Kaspersky, etc..which for the most part don't get in the way too much and may be a little more comprehensive compared to WD.
That being said W10 and WD have improved a lot, so one can get by using WD and the built-in security measures within W10 and be fine. It will really come down to preference. If your talking about more advanced users/techies, their criteria may change, simply due to the fact they may want more control, or a certain feature.
At the end of the day no setup is perfect, so following good computing practices is still very important. I've always been of the opinion that education should always take precedence over recommending a security program with the assumption that using x will make all your problems go away. I agree that just because someone likes to try different security programs/setups, doesn't mean they are security paranoid. All it means is they either like to try different programs just to see, or they haven't found one that meets their needs just yet.
As to security paranoia, I think a lot of that comes from not understanding whats going on and what it means. Everyone hears this and that about major breaches, people losing data to ransomware etc... take that with people putting out facts on how much new malware is created daily and it becomes a recipe for fear and paranoia. Furthermore forums like this one can also lead to paranoia because very advanced attacks are discussed, many of which probably would never apply to home users to begin with, but they buy in. Same goes for seeing other people's security setups and the constant talking about they various programs and the constant rating of, well this one sucks, you need x to protect you form y and so on....So I would say that education can both be a very good thing, but also a bad thing if taken in the wrong context.
It's why I may come across frustrated at times when I see a vs b threads, or discussions about programs in general/tests. It's not that I am against any of this at all, I think it's great and fun, I do really enjoy it. I only get frustrated when all I see is discussions about using/recommending x,y or z as a here you go this will solve all your problems/worries, but little is said about education and trying to tamper the fear that some may be expressing.
Well that's my two cents.