This is mostly the result of the intent of the game I suspect. The game's premise is about a fully consensual NTS relationship that you, the player, are in control of to some degree every step of the way. But realistically, that's impossible. You can't give players the option to say no to getting cucked, for example, otherwise your NTS game is no longer an NTS game. If you give the player the power to say no to anything and everything, then they may end up at the end of 0.7.1 with Laura only going as far as kissing--it's too many variables to keep track of, and too many scene variants to make.
On the other hand, there are certain things that currently must happen when they probably should be optional (such as going raw)... if the MC is meant to be a self-insert.
Right now, he's not. He's a weird mix of faceless insert and independent character, so it leads to discord like this. You can influence his decisions in some ways, but he's still making his own choices at the end of the day. Unless Stag is planning on adding and editing a ridiculous amount of content for story already touched on, it'll probably be best to think of the MC as his own character with his own agency that you occasionally can direct instead of a full self-insert.
In this light, I strongly suspect we are meant to believe the conversation about limits actually did happen, just offscreen. Same as all the reclaiming sex--MC and Laura have a very active relationship, but we haven't seen one scene about it yet because that's not what the game is about.
