4pc teams 'take the blame' button

Does anyone think when you lose in teams, there should be a button that one of the partners could take the blame. 

If they clicked the button, they would take the rating there partner has lost and lose it for themselves. 

This would be so much better, as a lot of the time, you lose rating due to your partner resigning (due to having to go). 

It would also be good so that one of the partners could admit it was there fault. 

So an example would be if it was 2100 and 2200  v 1900 and 2400, the second team loses, due to the 1900 moving way to fast, and the 1900 thinks its themselves fault, and takes the blame, taking both ratings. 

Also, if someone disconnects, and comes back after 30 minutes, the button should still be available. 

Anyone think this will work? 

Or is there a major issue?

People will cheat by only having 1 partner lose rating every game

true people just partner lower rated people and if lose the lower rated player loses rating where as the higher rated dude wont have any issues

true ig