To be honest, in this case, I have never done this for a gamble because indeed this is also an experiment for several big clubs so it is definitely difficult to predict how victory can be obtained because the focus of several clubs in this case is actually not on winning.
I would say it depends on which players get a chance during friendly games. If there are a lot of routined players then it usually doesn't have the pace as the real games have when something is at stake. But there might be some action when younger players get one of their first or few chances to show what they are able to do, but that can also lead to less predictability as they are emotionally kind of overwhelmed and don't play as well as they would usually do. I would rather go with teams who usually don't have a chance but can win a friendly game because anything else is often not worth the risk that a team out of a sudden literally forgot how to play the game.
Players also know that this is friendship so sometimes they don't really do it in the sense that they sometimes don't touch too hard in body fights or when trying to make attacks sometimes they also prefer which one is best and don't push too hard like a match for competition.
Just looking at the OP's case when we examine it, of course we know Morocco in the world cup and what it's like on the other hand Germany is also having problems but they are a big club and compared to their opponents they are much better but of course this also cannot be used as a benchmark for friendly matches because indeed the results sometimes it's not the win they are looking for but something else like i said before.