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I'm mostly kidding, but I do think it's worth pointing out that most (if not all) of those games have been accused of being extremely unfriendly to new players and generally being miserable experiences until you acquire a baseline level of knowledge.
I think the more important part of those games you listed is that they're designed around team play (and thus friend groups), with the obvious exception of Hearthstone (which compensates for the burden of knowledge by having a lot of randomness and a VERY forgiving ladder at the low end).
Getting destroyed in League is fun if you're playing with friends; with strangers it usually just results in a lot of angry messages.
> it is a pretty terrible game to play if you just want to unwind after work.
I think this is really the crux of why games that encourage team play will always win out: It's fun to play with friends, win or lose. SC2 tried this a bit, but at least when I used to play it was very clear that the game was completely unbalanced around team play.
Most of these games, if you want to really succeed, are mentally taxing. You have to pay attention to a minimap, you have to constantly be on the lookout for other people, you have to remember exactly what cards they've played so far.
If you can't counterbalance that with at least some socialization and lightheartedness, it's just work.