1. It does not follow that because people treat acts of grace lightly then these are superfluous and are to be marginalized or dismissed, any more than the fact that common grace as well as the word of God is treated lightly and often even with scorn means that such is overrated. Such reasoning impugns the judgment of God who provides both. The fact is that it was by means of miracles that Christ promised that multitudes of Gentiles (in particular) were persuaded to believe on this foreign (to them) Deity that the early church preached. (Rm. 15:19)
Jesus Christ is the same yesterday, today and forever, and we are to preach the God of the Bible, and there is no warrant for largely placing the book of Acts in a museum (though i am not an example of such power). Christianity began the miraculous, and the church of the living God has not taken a sabbatical, nor rescinded His gifts and callings. And while we have a completed canon, it is yet of the Lord's mercies to heal, while for many the Bible is as unknown or its character like it was in the first century, and miracles are Scriptural means of grace whereby God manifests that Word and His preachers were of the one true God.
2. While a wicked and adulteress generation demands a sign, that did not and does not mean (contrary to how it is often invoked) that all who seek a sign of the miraculous fall under that condensation and are wrong. For as the power of the Lord was present to heal, the Lord met the need of those in need of deliverance as well as honest seekers.
3. That "God has a plan for our welfare and not for evil, to give us a future and a hope. We should trust His plan," is not opposed to the perpetuity of supernatural gifts, and in reality these are an expression of His plan.
Thus miracles and supernatural gifts are Scriptural, and thus the problem is the fraud and abuse that prevails, much do to a public that is lacking in the fear of God and commitment to doctrine.But which no more makes the gifts to be the cause nor warrants excluding them than it did in Biblical times.
Nor does the fact that heretics from Catholics to Mormons profess belief in Pentecostal gifts impugn the viability of such, any more than it did when the magicians duplicated the first 3 miracles of Moses. And if all the grace that Christians have to offer excludes the working of supernal Pentecostal gifts, then the devil will have the overt miraculous to himself, leaving the Simon-type workers to retain their follower. Instead, what is needed is more working of the miraculous, not less.
And they went forth, and preached every where, the Lord working with them, and confirming the word with signs following. Amen. (Mark 16:20)
To God be the glory.
Excellent summation