Game should not allow us to make an illegal foramtion

[shwanko07]

is crazy ... i lost my CL final bcz of an illegal formation , when hit save accidentally without completing my formation amendment, my issue is
1- the amount of domination given to opposite side is ridiculous is like 90% possession
2- there is no time to change once you did a mistake, i wanted straightaway to correct my mistake and complete my formation amendment .. but it took bloody 15-20 min till the possession bar gone back to normal, enough for them to score the winner

I think the game should never allowed us to save formation if it is illegal .. or at least should give you a warning, bcz game give you no time to correct the damage when you made a mistake
what do you think guys?