Or it could be that God only works in those mentioned areas in more supernatural ways in order to get the Lord jesus and the Gospel confirmed and started off, and then he backs off as then will be norm of biblical preaching and teachingPerhaps these amazing miracles are still happening today without fanfare or publicity. Many wonders are being wrought in Africa, Islamic nations, South America.
The incredible miracles in the first century were in the context of amplified faith due to the recent ministry of Jesus who was healing entire towns and vast multitudes of sick, demon possessed, and disabled, never turning away anyone, never saying “if it be God’s will, be healed”.