This is why IMO I don't like putting all of human race into two categories. I play and enjoy both types of games, and takes a lot of inspiration from them. Also, while you guys say "Type A" and "Type B", lets not beat around the boosh, you mean casuals and real gamers. I get it because one of my best friend has the belief that gaming is being ruined by casuals and feel even Dark Souls has taken on way too much of a casual meme culture to be considered anything THAT hardcore and has now limited himself to online online fighting games.
But I can say for a fact that I love Dark Souls, Ninja Gaiden, Battletoads, and many of these games much more than some of the Zelda Classic quests that gets labelled "Type B" games here. Just figured I'd say this. When you start praising shit practices to defend your Type A and Type B argument, you're going down a very narrow road that less and less people will follow.
What ends up happening with this mentality is that you'll start believing "Type A" is what others approve of, and they are wrong because they are casuals and casuals should have no say in gaming (Because they are a cancer to gaming and are ruining gaming), and "Type B" is what I and "real gamers" approve of and we got the real experience in gaming and are the true minorities in this world that caters to teenagers and casuals.
I know this line of reasoning, and I guarantee there are fallacies to it. ;p
Long story short, if some of the people who talk about this "Type A" and "Type B" nonsense had my friend's standards in what he considers true difficulty, he'd tell you to play Tekken online and watch you get your ass handed to you. As for why he chooses Tekken of all fighting games, he says that while it's relatively easy for anybody to pick up it's harder than Street Fighter is to master. I also agree with him, there isn't much harder out there then online fighting tournaments. These are the real pros to gaming. Fighting games are so complex and difficult, most "Type A's as you'd put it" would not even play them, let alone compete online on a daily basis.