In Left 4 Dead, the maps loaded pretty much into the next smoothly, but they also had safe spots where players could take those breaks. Vermintide has kinda had some, typically in events before you trigger the start but after horde timers/specials get disabled, but such moments have been getting removed in the interest of a more fun pace. Overall, it’s good for the game, but it makes it harder and harder to take a moment.
I have a friend I’ve been trying to play with on Xbox, but even after his kids go to bed, one will often have an issue, and he’ll just have to stop wherever we are, while I protect him against hordes. It can work, but it’s not fun for either of us. We’ve had to just give up because it just becomes too difficult. We don’t know if he’s going to have to step away for one minute or forty-five. Life just isn’t super neat, and since we have a narrow window in which to play already, we’re loathe to just stop.
And, as per my original reason, sometimes you just have to take a minute to go to the bathroom.
A lot of other games do allow you to pause, and my friend and I find those much easier to play. This isn’t, after all, versus. It’s PvE. I mean, hell, there’s a MOD that allows a pause and you’ll see high-end players using it, largely for taking a moment to get disconnected players back in the game - which is another legit use, IMO.