Why we can't rank up playing without a pre made team!!

They were both brand new players, we had a real discussion about it and it's very clear when neither even knew how to close the Weapon Selection Screen before the match started. One would think, if they were on SMURF accounts, they would at least close the WEAPON SELECTION MENU and before the time ran out and started at the blue see threw wall vs starting at their spawn location only after the match started.  Only did they know after I told them.  No one is trying to hide the fact that they are a SMURF by pretending they don't know how or that they can close the WEAPON SELECTION SCREEN.   

I love how the example shows if you are Silver level playing with Platinum level.  It seems to me they should give an example as to why if you are GOLD level and your Teammates are brand new, how does that change your MMR.  I find it ironic they give an example of the type of players you will face but not an example of how your own team is decided.  Again the example states, "our system will go ahead and start matching you against other players."   Matching you Against.

Says nothing about how your own team is selected.