just to have something approaching meaningful conflict to Himself.

I do not find anything in scripture to support this. This seems like a very childish understanding of God.

I would say that God's machinations are far beyond us

Yet you just explained what they were. Which is it? You don't know what you're talking about or you do?

His plans are far more encompassing than what we could ever devise.

That's what priests say in order to move you away from God. Please make an effort to see through this clap trap. It sounds like you're making excuses. Is that what God wants from you?

It could be a stepping stone to some greater long-term purpose.

It doesn't change what your obligations are and what He has openly and rather plainly demanded from you.

You've been infected by priestly ramblings. Discard them.