“Allah works in mysterious ways”

“Allah works in mysterious ways”
I say nope!
I was listening to the radio today, and one of the presenters was talking about he thinks that the English language is so inadequate. Like that simple adage is so well accepted that we never thought about how, in a sense, it is wrong.
Allah does not work in ‘mysterious’ ways, Allah simply works in ways that is best for us. Just because we do not understand something, or just because we never in thought of going in that direction, it does not mean that the way it has come about is ‘mysterious’.
Why is it that our curious, human nature needs to be satisfied with everything? Why is it that we need to know the means to which a solution was found to the problem? Why can we not just accept that Allah knows what is best for us, and trust that He will not harm us directly?
Shouldn’t we try to live on a need to know basis? Like (I know at this point everyone is going to slaughter me) in Breaking Dawn of the (in)famous Twilight Saga, Bella’s dad found out about Jake being a werewolf, but he didn’t go into the nitty gritty of it all. He decided that if he could see Bella –even though since she was basically a vamp and tons of things had changed about her –it would be enough, because he said he could live on a ‘need to know basis’.
I think by adopting that process to most things in our lives, a lot of fights would be avoided. A lot less complications will arise and we could all try to be happier.
So, no, just because we do not and cannot understand the reasoning behind Allah’s plans, it does not make His ways and decisions a ‘mysterious way’. It simply means that we do not need to know the reason to it. And you need to learn to trust Him and yourself.