I suspect Netflix realizes this. I don't mind them not being suggested, but I'd be really upset if "junk" shows became unavailable. There's a bunch of popular content which I don't enjoy and I wouldn't be surprised if a sizable portion of content I do consume is "junk" according to popular opinion.
A matter of learning to appreciate a genre. For example I like certain types of reality tv which others think is 'stupid'. But first I didn't say all reality tv and also there are things I could point out to show why it is I appreciate it to anyone watching (one is learning from facial expressions at least in people that are not botoxed). By the same token I have no appreciation of sports. I wouldn't call it 'junk' simply because I realize others have learned to really like it. But it's no different than anything else. And the reason most people wouldn't criticize sports is because they see it's widely accepted mainstream. So they are not going to be the one to go out on a limb and call it out. Although they would something else (like shooting guns as a hobby).
>I suspect Netflix realizes this
Yes, because they collect all kinds of user data and have statistics to back up viewership and retention. E.g. the Adam Sandler films they produced come to mind. I don't think anyone would claim they're worthwhile films, but nonetheless Netflix has stated they got lots of views, which is important for their platform, especially to quantify investment returns. My theory is that since Netflix is global, foreign audiences further skew the quality:views statistics, as many such countries' media is dominated by Western media, and "Western" may very well be enough to make it appealing simply because it contrasts with domestic media and arts. But I suppose the West does this as well by awarding an Oscar to the "Best Foreign Film" that might very well not be as acclaimed or otherwise not viewed as such in its own country.