I usually play games on “normal” difficulty these days, for a balanced challenge. However, I don’t particularly enjoy boss fights, or at least I don’t enjoy the extra challenge associated with them. Was thinking it would be nice if games had a separate setting so I could just set boss fights to “easy”, while not making the rest of the game less challenging as well.
I have the opposite issue, so yes. I don’t particularly enjoy having to constantly pay attention to every enemy, but I enjoy learning a boss fight for an hour or two. I’ve also played a few games where dealing with random enemies felt harder than dealing with bosses due to sheer numbers, and it would help with that too.
So I don’t think it’s really a design problem. If you know exactly what you want your game’s experience to be, then don’t add it. But I’d argue for most games it isn’t integral to the experience how the difficulty of normal mobs vs bosses compares, and people have different preferences for it.