I'm not talking about having them visible on the map. I'm talking about having a set of pre-defined things you can expect to find, denoted by specific symbols - making any and all exploration completely predictable and repetitive.
As in, you know almost exactly what you'll find because the symbol will tell you. You get the very distinct feeling that a level designer is sitting with a level editor and dragging stuff into the level, instead of creating something more bespoke and handcrafted..
If you play with that feature on, yes. Personally, I don't get why anyone would, but I guess a lot of gamers today prefer to know what to expect rather than discover it on their own.