Yes, back in the first century, those used to confirm God's word (Mk 16:20). After it was confirmed, they were no longer needed (1Cor 13:8-10).
Elijah, Jesus and Peter raised the dead. Jesus restored missing limbs on people. Obviously none of that is going on today. I've yet to witness anything supernatural, and I don't believe anyone else has either. Also, people are mistaken to believe that miracles will generate faith in God.
Num 14:11 And the LORD said to Moses, “How long will this people despise me? And how long will they not believe in me, in spite of all the signs that I have done among them?
No, it's God's word that generates faith (Rom 10:17).