Why am I not allowed to know if I disconnected before a game starts?

I just played a ranked game where I didn't join when everyone else did. I never connected. But when i looked at the pre game screen, loading screen, it just looked like normal. Needless to say, we lost. I am fucking furious. I could have restarted the loading process if I would have known. It took atlas 7 minutes for it to tell me that I had not connected, and that i need to restart the loading process. I'm sorry for my bad language, but why can't I fucking know when I disconnect? Is that too much to ask? Like, i'm not asking for loss forgiveness right here, but i'm asking for the loading screen to look different when I don't load in. And to those saying that I should know when something is wrong when it takes 7 minutes; my games usually take a while to load up. So i'm used to waiting for a game to load for a while.

TL;DR We need a system to tell us that we have disconnected from a game before it starts.