I thought of that too, but
@il brutto provided a statistic that said that the issue tends to be irrelevant. Wouldn't be a bad ideea either way.
I think that in a two legged final we can diminish the component of luck.
Well I cant say we lost these finals because of luck
2015 - We have been really good and put up a fight against allmighty Barca - 2 Legged final might do the trick but again Barca were clearly the best in that year so they would have probably won it anyway..
2017 - Luck wasnt the ingredient we were missing... Real prepared well for this and got everything right...
2 legged final? We would probably not overcome a 4-1 scoreline...
Right now would a 2 legged final help us?! Maybe and maybe not.. The reason why we havent won it is not being good enough and not any luck related issue...
Can we win it this year?! Yes, but there are teams who IMO have more chances like Liverpool who is by far the best in Europe right now and then there are Real Madrid who has a similar winning mentality in Europe to us in Serie A.
Then there are a few teams including us that have a chance.
I dont know their domestic cup situation but if they are still in it they could definitely celebrate the treble this season (I wish we had Klopp)