The chances of any of the Angels including Iblis disobeying him, were so low.
The chances of Adam who is one of God's elite chosen, to look towards the everlasting tree and exalted unending authority with envy, was so low.
The chances that Successors of Adam, be not followed by humanity, and instead loud mouth leaders and idols instead, were so low leading to Nuh, it was all so low.
Thousand of years of preaching by Nuh, the chances were supposed to be they heed his calls.
After that, chances of guidance were inverted. Due to diseases of example of disobedience and the "well a lot did it, so what's the big deal" and uninspiring nature of human majority, it became the opposite.
Now guidance which is so dear to God, became, something that was improbable for most. Generation to generation, he tries to fix it with his revelations and Messengers, but there is no cure for the disease.
Because people assume God knows the future, it looks bad. Because assume this is the way he intended them to be it looks bad.
Because people assume God's powers can make him do impossible like make square triangles, but it's how God expresses for example regarding the misguidance of Muslims (not limited to them) "how can God guide a people who disbelieve after they witnessed the Messenger is truth..."
He through his Messengers (Ali (a) to Hassan Al-Askari (a)) tried to annul the sorcery from sorcerers and Iblis forces, but people despite the emphasis to hold to God's chosen, guidance, and rope in the Quran, stick to people who are not appointed by God. Despite Rasool (s) words to hold on to Quran and family together, there's been a war to separate Quran from his family and his family from Quran while Quran unites them and calls them the "family of the reminder".
God is trying to save us from his wrath. He wants humans to mostly enter paradise and so has prolonged the life of the Twelfth Successor, but now the time, without miracles, is making it almost impossible to save them.
It seems the warnings are becoming unavoidable, and the warning to the Mahdi is meant to be avoided, and that we will be destroyed (except few believers as was in the past).
He doesn't want to bring the Mahdi and the world is in it's arrogant and heedless state, so that they look towards misguiding loud mouths and they like those in the past, accuse him of being a sorcerer when he performs miracles.
The entertainment business (just for entertainment we believe) always shows the top powerful person to be evil and show incredible powers like reviving dead and other things are not a display of power of God. This is from shows, to movies, to games. It doesn't matter. We been incepted.
The Quran which warns about the Mahdi more then the day of judgment is veiled with occult darkness and sorcery so that people are oblivious to the Mahdi in the Quran.
Ya Ali help.