looks to me that you were very defensive, which may have resulted in the 0-5 score
at level 20 the other team is still good but unless you put players in attacking positions then how would you score goals if they have so many shots

i am level 7 and have a few simialr results, but i watch for when others have them and it evens out

in the 1980's Australia beat Brazil 4-0 in a friendly
Brazil ranked 1 in the world
Australia ranked possibly over 100

trolled i guess