Agree with you for the most part. I don't think side glances are required here or in real life but they obviously help.
It's in the game and that's that. The Steam crowd will find it helpful until they get experience. If it keeps them playing then I am fine with it. 
The first time I flew instruments in cloud (real life) I was right seat and I couldn't tell which way was up or down or if I was even sideways. Air dynamics and gravity has a funny way of fooling the inner ear to which way is up - where the horizon is, and the ability to get lost in the clouds. Spatial disorientation can be the worst feeling ever for a novice pilot.
For me, by the time I was flying real life in the clouds, I already had a couple thousand hours of sim flying - and dozens flying looking down, not out. Back to the first time right seat, using my instruments only to navigate when flying IFR in the grey space came naturally. No panic and I found it easier to keep track flying from beacon to beacon, focus on readings - altimeter, VOR, speed, heading, and quickly checking for drift and icing. Didn't have the fancy GPS nav units we have today when I was practising to become a pilot. And looking outside in turbulent IFR flying did nothing to help me figure which way is up.
I think it's important to teach the same to any new pilot in the game. Flying in clouds is the next step in the evolution of learning how to fly. Don't like flying without your pitch ladder? Don't fly in clouds if you're not ready to use just your instruments.
I'm happy with the current implementation.