Agreed, just with Nr. 10 I have some problem for the tie with same team as it will finish your winstrike in ranked battles in every case, now this situation can finish your winstrike, but you have also the chance that winstrike proceed.

Maybe it would be an idea to change also the winstrike-rule so that only a lost fight will finish the winstrike and not a draw ?

Nr. 9 you pointed out very well, this is also interesting question for me.