Space suits don't function IRL as they do in this game. You're original argument was, "well aaaaactuuuuually if you're in a depressurised environment" which a space suit isn't, even without a Portable Life Support System or an umbilical hose, so the whole 'War and Peace' essay on respiration and pressure is literally an irrelevant waste of time but I'm glad you enjoyed writing it as much as I did ignoring it.
Your next argument is simply "git gud" which though crude, is fair enough. I don't mind either way really but on the whole think it would be cool if the suits were more true to life in that when your air canister runs dry, the atmosphere in your suit doesn't spontaneously vanish/vent into space inexplicably, though actually getting good at the game would also be sufficient for most.