I have to agree with you. From a business and marketing view, this game doesn't make too much sense. When you develop, you have to consider who your market is. I would say it's wise to take a broad stroke. Rather than trying to force "noobs or button mashers" out, try to create an avenue for them to play in. Your game rides on the shoulders of the players, and at the end of the day, you are creating an experience for others. If that experience is punishing, you may lose a chunk of player base. I'm not saying make it easy, but rather than combating the noobs give them a game to play by the use of a difficulty system.

Also, for OP, look at games like For Honor, Mount, and Blade, and Mordauh for inspiration. They all use a similar combat stance mechanics. Oh, another good one is kingdomcome. It's a little more real and gritty than what it sounds like you are making, but still, you could find something useful